Thirty Years' War
The general European war of 1618–1648, from the Bohemian Revolt and the Defenestration of Prague to the Peace of Westphalia.
Category: Society
- 1617Spanish and Austrian Habsburgs agree the secret Treaty of Oñate
In 1617 Philip III of Spain agrees to back Ferdinand of Styria's succession in Bohemia and Hungary. In return Ferdinand gives Spain the route linking Italy to the Netherlands and rights in Alsace. Sources give March, June or July.
- June 29, 1617Ferdinand of Styria is crowned King of Bohemia
On 29 June 1617 the Catholic Archduke Ferdinand, known for his Counter-Reformation in Inner Austria, is crowned King of Bohemia as Matthias's heir. Bohemian Protestants fear for the Letter of Majesty.
- May 23, 1618Protestant nobles throw royal regents from a window at Prague Castle
On 23 May 1618 Bohemian Protestant leaders throw the Catholic regents Martinitz and Slavata and their secretary Fabricius from a window of the Bohemian Chancellery. All survive. The act starts the Bohemian Revolt and the Thirty Years' War.
- August 29, 1618 – May 13, 1619Johan van Oldenbarnevelt is arrested and later beheaded in the Dutch Republic
Johan van Oldenbarnevelt, chief architect of the Twelve Years' Truce and protector of the Remonstrants, is imprisoned on 29 August 1618 and beheaded on 13 May 1619, four days after the Synod of Dort closes. Hugo Grotius gets a life sentence.
- 1619A Bohemian army under Count Thurn reaches the walls of Vienna
In 1619 the Bohemian rebel army, led by Count Thurn, advances into Austria and reaches the walls of Vienna, threatening the new ruler Ferdinand at his own capital. The Bohemian estates also seek allies in Hungary and the Empire.
- March 20, 1619Emperor Matthias dies in Vienna, leaving the Bohemian crisis to Ferdinand
Emperor Matthias dies on 20 March 1619, aged 62, without surviving children. His cousin Ferdinand of Styria, already crowned King of Bohemia, inherits the Habsburg lands as Bohemia is in open revolt.
- August 1619 – September 1619Gábor Bethlen of Transylvania invades Royal Hungary and joins the revolt
In August 1619 the Calvinist Prince of Transylvania, Gábor Bethlen, invades Habsburg-ruled Royal Hungary and in September takes Košice, where Protestant supporters proclaim him leader of Hungary and protector of Protestants.
- August 26, 1619Bohemian estates depose Ferdinand II and elect Frederick V as king
In August 1619 the Bohemian estates depose Ferdinand II and on 26 August elect the Calvinist Frederick V of the Palatinate as king. Sources date the deposition 19 or 26 August. Frederick accepts on 28 September.
- August 28, 1619Ferdinand II is elected Holy Roman Emperor at Frankfurt
On 28 August 1619, two days after Bohemia deposed him, Ferdinand II is elected emperor at Frankfurt unanimously, with the Palatine delegation first objecting. Frederick V himself votes for him. He is crowned on 9 September.
- November 4, 1619Frederick V is crowned King of Bohemia in Prague
On 4 November 1619 the Calvinist Elector Palatine is crowned Frederick I of Bohemia. His reign ends a year later at White Mountain, which earns him the nickname "Winter King".
- c. 1620 – c. 1623The Kipper und Wipper debasement crisis hits the German lands
From about 1620 to 1623 German rulers and cities debase their coinage to pay for war. Inflation, riots and soldiers refusing coins follow, and debased money is later declared illegal and withdrawn.
- July 3, 1620 – May 14, 1621The Protestant Union declares neutrality at Ulm and is later dissolved
By the Treaty of Ulm on 3 July 1620 the Protestant Union declares neutrality and refuses to back Frederick V. Ferdinand II later orders it to disband its army, and it is formally dissolved on 14 May 1621.
- August 1620Gábor Bethlen is elected King of Hungary at Banská Bystrica
In August 1620 the Diet at Banská Bystrica elects the Calvinist Gábor Bethlen King of Hungary, in defiance of Ferdinand II. Sources give 20 or 25 August. He never has himself crowned and renounces the title in 1621.
- August 1620Spain's Army of Flanders invades the Lower Palatinate
In late August 1620 Ambrogio Spinola's Spanish Army of Flanders enters the Lower Palatinate from the Netherlands and takes Kreuznach and Oppenheim. This opens the Palatinate campaign, which lasts until August 1623.
- November 8, 1620Imperial and League forces crush the Bohemian army at White Mountain
On 8 November 1620 Tilly and Bucquoy rout Christian of Anhalt's Bohemian army near Prague in about an hour. Frederick V flees, and the Bohemian Revolt collapses.
- June 21, 1621Twenty-seven Bohemian rebel leaders are executed in Prague's Old Town Square
On 21 June 1621 twenty-seven leaders of the Bohemian Revolt, nobles, knights and burghers, are executed in Old Town Square. Twelve heads hang from the Old Town Bridge Tower until the Saxon invasion of 1631.
- December 31, 1621Peace of Nikolsburg: Bethlen renounces the Hungarian crown for religious guarantees
On 31 December 1621 Gábor Bethlen gives up the title of King of Hungary. He gets religious freedom for Hungarian Protestants, the title of Imperial Prince, seven counties, three fortresses and a Silesian duchy.
- April 27, 1622 – June 1622Tilly defeats the Protestant armies in the Palatinate at Wimpfen and Höchst
In spring 1622 Tilly's Catholic League army invades the Palatinate and beats Protestant forces at Mingolsheim (27 April), Wimpfen (early May, sources give 6 or 8) and Höchst (June).
- September 19, 1622Heidelberg falls to Tilly after an eleven-week siege
On 19 September 1622 Tilly takes Heidelberg, capital of the Electoral Palatinate, after eleven weeks. Mannheim falls soon after, and Frederick V, already in exile, flees to the United Provinces.
- February 1623Ferdinand II transfers the Palatine electoral dignity to Maximilian of Bavaria
In February 1623 Ferdinand II strips Frederick V of his electorate and gives it to Maximilian I of Bavaria, leader of the Catholic League. Maximilian also gains the Upper Palatinate, and Catholics now hold a majority among the electors.
- August 6, 1623Tilly defeats Christian of Brunswick at Stadtlohn and ends the Palatine phase
On 6 August 1623 Tilly destroys Christian of Brunswick's Protestant army at Stadtlohn near the Dutch border. Frederick V signs an armistice, which ends the Bohemian-Palatine phase of the war.
- August 12, 1624Cardinal Richelieu becomes chief minister of Louis XIII
Richelieu centralised royal power by curbing noble privileges, crushing Huguenot political power (La Rochelle, 1627-28) and using intendants, while steering France against the Habsburgs in the Thirty Years' War.
- May 9, 1625Christian IV of Denmark takes command of the Lower Saxon Circle and enters the war
On 9 May 1625 Christian IV, elected military commander of the Lower Saxon Circle, takes up arms against Ferdinand II as Duke of Holstein. His intervention opens the Danish phase of the war, financed by England and the Dutch.
- July 25, 1625Wallenstein is commissioned to raise an imperial army for Ferdinand II
On 25 July 1625 Albrecht von Wallenstein, made Duke of Friedland that year, receives his commission to raise an army for Ferdinand II at his own expense. It grows to tens of thousands, and sources differ on whether 30,000 or 50,000.
- December 9, 1625England, the Dutch Republic and Denmark ally at The Hague against the emperor
On 9 December 1625 England, the Dutch Republic and Denmark-Norway sign the Treaty of The Hague, under which the English and Dutch are to fund Christian IV. France, Sweden and Venice do not join, and the funds fall short.
- April 25, 1626Wallenstein routs Mansfeld at the Dessau Bridge over the Elbe
On 25 April 1626 Wallenstein's imperial army overpowers Ernst von Mansfeld's Protestant army as it tries to cross the Elbe at Dessau, the only land link between Magdeburg and Dresden. Mansfeld loses nearly half his army.
- August 27, 1626Tilly defeats Christian IV of Denmark at Lutter
On 27 August 1626 Tilly's Catholic League army defeats Christian IV at Lutter am Barenberge. The Danes lose all their artillery and thousands of men, and many German allies desert Christian.
- 1627Ferdinand II issues the Renewed Land Ordinance, making Catholicism Bohemia's only religion
In 1627 Ferdinand II's Renewed Land Ordinance makes the Bohemian lands hereditary Habsburg possessions, strips the Estates of their powers and allows only Catholicism, except for Jews. It stays in force, modified, until 1848.
- December 26, 1627 – June 19, 1631The War of the Mantuan Succession divides France, Spain and the emperor
Duke Vincenzo II of Mantua dies on 26 December 1627 without heirs. France and Venice back Charles of Nevers, Spain and the Empire another claimant. Imperial troops sack Mantua on 18 July 1630, and Cherasco confirms Nevers on 19 June 1631.
- 1628Ferdinand II deposes the Dukes of Mecklenburg and gives the duchy to Wallenstein
In early 1628 Ferdinand II deposes the hereditary Duke of Mecklenburg and installs Wallenstein, who by 1627 has also occupied Pomerania and Jutland. From April 1628 Wallenstein is also imperial admiral of the Baltic.
- May 13, 1628 – August 4, 1628Stralsund resists Wallenstein with Danish and Swedish help
From 13 May to 4 August 1628 Stralsund holds out against Wallenstein. On 23 June it signs a twenty-year alliance with Gustavus Adolphus, who sends troops. It is Wallenstein's first setback and Sweden's foothold in the Empire.
- March 6, 1629Ferdinand II issues the Edict of Restitution
On 6 March 1629 Ferdinand II orders Protestants to return church lands secularised after 1555, which would change rulers in two archbishoprics, twelve bishoprics and over 100 religious houses. Protestant electors protest, and the Peace of Prague later revokes it.
- May 22, 1629Denmark makes peace with the emperor in the Treaty of Lübeck
On 22 May 1629 Wallenstein and Christian IV sign the Treaty of Lübeck, ratified by Ferdinand II on 7 June. Christian keeps his lands but gives up his claims to the Lower Saxon bishoprics and stays out of imperial affairs. Denmark declines as a power.
- September 26, 1629Sweden and Poland sign the Truce of Altmark, freeing Gustavus Adolphus for Germany
On 26 September 1629, with French mediation, Sweden and Poland-Lithuania agree a six-year truce. Sweden keeps Livonia and the revenue from Polish ports, which funds its entry into the Thirty Years' War in 1630.
- July 6, 1630Gustavus Adolphus lands on Usedom and brings Sweden into the war
On 6 July 1630 (26 June Old Style) Gustavus Adolphus lands his army on Usedom, off Pomerania, and Sweden enters the war. Sources differ on the force, from about 4,000 to 13,000 men. He occupies Pomerania under the Treaty of Stettin.
- August 13, 1630Ferdinand II dismisses Wallenstein at the Diet of Regensburg
On 13 August 1630 Ferdinand II decides at Regensburg to dismiss Wallenstein, whom he suspects of planning a coup. Envoys announce it in September, and Wallenstein gives his army to Tilly and retires to Jičín.
- January 23, 1631France agrees to finance Sweden in the Treaty of Bärwalde
On 23 January 1631 Richelieu's France agrees to pay Sweden 400,000 Reichstaler a year, and Sweden to keep an army of 36,000 in Germany. Gustavus Adolphus must respect Catholic worship and Bavaria's neutrality. Richelieu fights the Habsburgs by proxy.
- May 20, 1631Imperial and League troops storm and burn Magdeburg
On 20 May 1631, after a two-month siege, Tilly's and Pappenheim's troops storm Magdeburg. Fire destroys about 1,700 of 1,900 buildings and some 20,000 people die. Gustavus Adolphus does not relieve it, and "Magdeburg mercy" becomes a byword.
- September 17, 1631Gustavus Adolphus and Saxony defeat Tilly at Breitenfeld
On 17 September 1631 the Swedish-Saxon army defeats Tilly's Imperial-League army near Leipzig. The Saxons break early but the Swedes counterattack. It is the Protestants' first major victory and opens southern Germany to Sweden.
- 1632Ferdinand II recalls Wallenstein after Tilly's defeats
In 1632, after Gustavus Adolphus's victories at Breitenfeld and the Lech and Tilly's death, Ferdinand II recalls Wallenstein. He raises a new army within weeks and drives the Saxons from Bohemia.
- April 15, 1632Gustavus Adolphus crosses the Lech at Rain and Tilly is mortally wounded
On 15 April 1632 Gustavus Adolphus defeats the Catholic League at Rain on the Lech. Tilly's thigh is shattered and he dies two weeks later. Maximilian of Bavaria retreats, leaving Bavaria open to Swedish invasion.
- May 17, 1632Gustavus Adolphus enters Munich
On 17 May 1632 Gustavus Adolphus's army enters Munich, capital of Maximilian of Bavaria, the leader of the Catholic League. Bavaria is widely pillaged. The Swedes then advance on Nuremberg.
- September 3, 1632Wallenstein repels Gustavus Adolphus's assault at the Alte Veste near Nuremberg
On 3 September 1632 Gustavus Adolphus attacks Wallenstein's entrenched camp at the Alte Veste, near Nuremberg, and is repulsed with about 2,500 casualties. Short of supplies, he withdraws south on 19 September.
- November 16, 1632Gustavus Adolphus is killed at the Battle of Lützen
On 16 November 1632 (6 November Old Style) Gustavus Adolphus is killed leading a cavalry charge at Lützen. The Swedes hold the field against Wallenstein, who withdraws to Bohemia, but Sweden loses its king and the war goes on.
- April 1633Sweden and the German circles form the Heilbronn League
In April 1633 Chancellor Axel Oxenstierna forms the Heilbronn League with the Swabian, Franconian and Rhenish circles to continue the war after Gustavus Adolphus's death. Sources give 23 or 27 April. Members pay under a third of what they pledge.
- January 24, 1634 – February 18, 1634Ferdinand II removes Wallenstein from command and declares him a traitor
On 24 January 1634 Ferdinand II signs a secret patent removing Wallenstein, and on 18 February an open patent charges him with treason and orders him brought to Vienna "dead or alive". Wallenstein had been negotiating secretly with Saxony, Sweden and France.
- February 25, 1634Wallenstein is murdered at Eger
On the night of 25 February 1634, Scottish and Irish officers in Wallenstein's own force kill his loyal officers at a feast at Cheb Castle. Captain Walter Devereux then spears Wallenstein. Ferdinand II rewards the assassins.
- September 5, 1634 – September 6, 1634Imperial and Spanish forces crush the Swedes at Nördlingen
On 5–6 September 1634 an Imperial-Spanish army routs the Swedish-German army of Horn and Bernhard of Saxe-Weimar at Nördlingen. Some 12,000 to 14,000 are killed or captured. Swedish power in southern Germany ends, and France soon enters the war.
- April 30, 1635France and Sweden sign the Treaty of Compiègne
Richelieu and Oxenstierna ally France and Sweden against the Habsburgs, renewing Bärwalde's subsidies, with no separate peace. The date is Old Style (30 April); Sweden delays ratification until France declares war on Spain.
- May 19, 1635France declares war on Spain
On 19 May 1635 Louis XIII declares war on Spain and invades the Spanish Netherlands, openly entering the Thirty Years' War. It begins the Franco-Spanish War, which outlasts Westphalia and ends in 1659.
- May 30, 1635Ferdinand II and Saxony make the Peace of Prague
On 30 May 1635 (Old Style) Ferdinand II and Saxony sign the Peace of Prague. It effectively revokes the Edict of Restitution, sets 1627 as the cutoff for church property and bans alliances in the Empire. Bernhard of Saxe-Weimar fights on for France.
- August 1636Spanish army reaches Corbie, threatening Paris
In August 1636 a Spanish incursion from the Netherlands under the Cardinal-Infante takes Corbie in Picardy. Supply problems force it to retreat, and the attempt is not repeated.
- October 4, 1636Swedes defeat the Imperial-Saxon army at Wittstock
On 4 October 1636 Banér and Leslie rout Hatzfeldt's Imperial and Saxon army, which loses all its artillery. It restores Swedish prestige, but Brandenburg allies with the emperor.
- February 15, 1637Ferdinand III succeeds his father as emperor
Elected King of the Romans at Regensburg on 22 December 1636, Ferdinand III becomes Holy Roman Emperor when Ferdinand II dies on 15 February 1637. He rules through to Westphalia.
- October 21, 1639Dutch fleet destroys a Spanish armada at the Downs
On 21 October 1639 Maarten Tromp attacks Oquendo's fleet, anchored in neutral English waters, with fireships. Spain loses many ships and its hope of contesting Dutch sea power in the Channel.
- 1640Corpus de Sang: Catalan revolt breaks out in Barcelona
Riots by harvesters and townsfolk against billeted Spanish troops and the crown's demands begin the Reapers' War. Sources date it to Corpus Christi in May or 7 June 1640, so only the year is given.
- December 1, 1640Portugal revolts against Spain and acclaims John IV
On 1 December 1640 nobles and wealthy townsmen revolt and acclaim John IV, Duke of Braganza, ending 60 years of Habsburg rule. Spain accepts Portugal's sovereignty only in 1668.
- January 17, 1641Catalonia proclaims a republic under French protection
On 17 January 1641 the Junta de Braços accepts a Catalan Republic under French protection. After defeat at Martorell on 23 January, Pau Claris recognises Louis XIII as Count of Barcelona.
- January 26, 1641Franco-Catalan forces defeat Spain at Montjuïc
On 26 January 1641 Franco-Catalan forces win the Battle of Montjuïc outside Barcelona, securing the city for the rebels. Barcelona falls to Spain only in 1652.
- December 1641Hamburg preliminaries open the road to the Westphalian congress
In December 1641 Sweden, France and the empire negotiate a preliminary peace at Hamburg, which sets the way for the talks at Münster and Osnabrück. The page gives no day.
- November 2, 1642Torstensson defeats the Imperial army at Breitenfeld
On 2 November 1642 Torstensson's Swedes defeat Archduke Leopold Wilhelm and Piccolomini, who lose all 46 guns. Sweden gains Leipzig, but Saxony still does not make peace.
- December 4, 1642Cardinal Richelieu dies and Mazarin takes over
Richelieu dies in Paris on 4 December 1642, aged 57, having named Mazarin as successor. Mazarin's authority grows after Louis XIII's death on 14 May 1643, when Anne of Austria confirms him.
- January 1643Philip IV dismisses the Count-Duke of Olivares
In January 1643, after the Catalan and Portuguese revolts and a court intrigue, Philip IV dismisses his favourite Olivares. He retires and dies at Toro in 1645.
- May 19, 1643Condé defeats the Spanish at Rocroi
On 19 May 1643 the 21-year-old Duke of Enghien, later the Great Condé, defeats Melo's army at Rocroi. It ends the Spanish tercios' aura of invincibility. Estimates of Spanish losses vary widely.
- c. 1644 – 1648Peace congress meets at Münster and Osnabrück
From about 1644 delegations meet in Münster and Osnabrück, Catholic and Lutheran cities, with no exact opening date. 109 delegations take part and talks run until 1648 while fighting continues.
- March 6, 1645Swedes destroy the Imperial army at Jankau
On 6 March 1645 Torstensson defeats Hatzfeldt, who is captured, at Jankau in Bohemia. Hunger and exhaustion stop the Swedes from exploiting it, and they leave Bohemia by February 1646.
- August 3, 1645Condé and Turenne win at Nördlingen, at heavy cost
On 3 August 1645 near Alerheim, Enghien and Turenne defeat the Bavarians under Mercy, who is killed. French losses are heavy and the strategic gain is small, and Bavaria gets only a breathing space.
- August 13, 1645Denmark yields territory to Sweden at Brömsebro
On 13 August 1645 Denmark–Norway cedes Gotland, Ösel, Jämtland, Härjedalen and (for 30 years) Halland. It ends the Torstenson War and confirms Sweden's dominance in the Baltic.
- March 14, 1647France, Sweden and Bavaria sign the Truce of Ulm
On 14 March 1647 Elector Maximilian I of Bavaria accepts a truce with France and Sweden and drops his alliance with Ferdinand III. He breaks it on 14 September, returning to the emperor.
- 1648Pope Innocent X declares the Westphalian settlement void
Innocent X condemns the peace as "null, void, invalid, iniquitous, unjust, damnable, reprobate, inane" and without effect for all time. The page gives no date for the brief, so only the year is shown.
- 1648 – 1653The Fronde: revolts of Parlement and nobles against the crown
Civil wars during Louis XIV's minority pitted the Parlement of Paris and great nobles against the regency and Mazarin. The crown won, and the young Louis resolved to concentrate power in the monarchy.
- January 30, 1648Spain recognises the Dutch Republic at Münster
On 30 January 1648 Philip IV and the States General sign a separate peace at Münster, ending the Eighty Years' War. Spain recognises Dutch sovereignty; oaths are sworn on 15 May. It is not part of the Westphalian treaties.
- May 17, 1648Franco-Swedish army wins at Zusmarshausen
On 17 May 1648 Wrangel and Turenne defeat the Imperial-Bavarian army, killing Melander. Montecuccoli's rearguard saves it from destruction. It is the last major battle on German soil, and Bavaria is plundered.
- August 20, 1648Condé crushes the Spanish at Lens
On 20 August 1648 Condé defeats Archduke Leopold Wilhelm's Spanish army, which loses about half its men. Often called the last major battle of the war, it adds pressure for peace, though the Fronde limits France.
- October 24, 1648Peace of Westphalia ends the Thirty Years' War
On 24 October 1648 treaties are signed at Osnabrück (emperor and Sweden) and Münster (emperor and France). The war killed an estimated 4.5 to 8 million people. Historians now doubt that the texts founded modern state sovereignty.
- October 24, 1648The Empire recognises Swiss independence
On 24 October 1648 Westphalia grants the Swiss Confederation legal independence from the Holy Roman Empire. Basel's mayor Johann Rudolf Wettstein, accredited in 1647, had lobbied for it at Münster.
- October 24, 1648Brandenburg-Prussia gains Farther Pomerania and four bishoprics
Westphalia gives Brandenburg-Prussia Farther Pomerania and the bishoprics of Magdeburg, Halberstadt, Kammin and Minden. The border with Swedish Pomerania is left open.
- October 24, 1648France gains Alsatian cities and confirms Metz, Toul and Verdun
At Münster France keeps Metz, Toul and Verdun, and receives the Alsatian Décapole cities (not Strasbourg or Mulhouse) and Pinerolo. The Franco-Spanish war continues.
- October 24, 1648Westphalia restores the Lower Palatinate and creates an eighth electorate
Charles I Louis regains the Lower Palatinate and a new, eighth electoral vote, while Bavaria keeps the Upper Palatinate and the Palatinate's former electoral vote, ending the dispute that began in 1623.
- October 24, 1648Westphalia recognises Calvinism and fixes 1624 as the religious norm
The treaties give Calvinism legal standing beside Catholicism and Lutheranism, take 1 January 1624 as the normative year for each state's religion, and end rulers' power to impose their faith on subjects. Half of the imperial court's judges must be Protestant.
- October 24, 1648Sweden gains Western Pomerania, Wismar, Bremen and Verden
At Osnabrück Sweden receives an indemnity of five million thalers, Western Pomerania, Wismar and the prince-bishoprics of Bremen and Verden as hereditary fiefs, with seats in the Imperial Diet.