Thirty Years' War

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Thirty Years' War
Europe map 1648.PNG
Map of Europe in 1648. The grey places are small German states within the Holy Roman Empire.
DateMay 1618–1648
Europe (mostly Germany)
Result Peace of Westphalia
Flag of Sweden.svg Sweden
Flag of Bohemia.svg Bohemia
Flag of Denmark.svg Denmark-Norway
Prinsenvlag.svg Dutch Republic
Flag of Royalist France.svg France
Flag of Scotland.svg Scotland
Flag of England (bordered).svg England
Flag of Saxony.svg Saxony
Flag of Cross of Burgundy.svg Spain
Flag of Portugal (1578).svg Portugal
Flag Germany Emperors Banner.svg Holy Roman Empire
(Catholic League)
Flag of the Habsburg Monarchy.svg Austria
Flag of Bavaria (striped).svg Bavaria
Commanders and leaders
Bohemia Frederick V
Sweden Gustav II Adolf 
Sweden Johan Baner
Flag of Royalist France.svg Cardinal Richelieu
Flag of Royalist France.svg Louis II de Bourbon
Flag of Royalist France.svg Turenne
Denmark Christian IV of Denmark
Flag of Saxony.svg Bernhard of Saxe-Weimar
Flag of Saxony.svg Johann Georg I of Saxony
Flag Germany Emperors Banner.svg Johann Tzerclaes, count of Tilly
Flag Germany Emperors Banner.svg Albrecht von Wallenstein
Flag Germany Emperors Banner.svg Ferdinand II
Flag Germany Emperors Banner.svg Ferdinand III
Flag of Cross of Burgundy.svg Count-Duke Olivares
Flag of Cross of Burgundy.svg Cardinal-Infante Ferdinand
Flag of Bavaria (striped).svg Maximilian I
150.000 Swedes,
75,000 Dutch,
~100,000 Germans,
150,000 French
300,000 Spanish,
~100-200,000 Germans

The Thirty Years' War was fought from 1618 until 1648. Though it was primarily centered in Germany, several other countries became involved in the conflict, including France, Spain, and Sweden. In fact, almost all of the powerful countries in Europe were involved in the war. It began as a fight about religion between Protestants and Catholics. As the war continued, the Catholic Habsburg dynasty and other countries used the war to try to get more power. For example, Catholic France fought for the Protestants, which made the France-Habsburg rivalry even worse.

The Thirty Years' War caused things like famine and disease in almost every country involved. The war lasted for 30 years, but the problems that had caused the war were not fixed for a long time after the war had been over. The war ended with the Treaty of Westphalia.

Causes[change | change source]

There were several reasons that the Thirty Years' War started.

Ferdinand I, Holy Roman Emperor and King of Bohemia. He encouraged the Council of Trent to allow Communion in both kinds for German and Bohemian Catholics.

Firstly, the Peace of Augsburg (1555), which was signed quickly by Charles V, stopped the fighting between the Lutherans and the Catholics in Germany.

The Peace of Augsburg stated:

  • The 225 German princes choose the religion (whether they were Lutheran or Catholic) in their states (cuius regio eius religio).
  • Lutherans that lived in a state under the control of a bishop, called an ecclesiastical state, could stay Lutherans.
  • Lutherans could keep the land that they had taken from the Catholic Church after the Peace of Passau (1552).
  • The bishops of the Catholic Church who switched to Lutheranism had to give their land back (reservatum ecclesiasticum).
  • People that lived in a state that had chosen Lutheranism or Catholicism were not allowed to change their religion.

The Peace made the violence end for a bit, but it did not fix the real reason for the fighting. Bothgroups thought that the Peace different things. The Lutherans said it was only an agreement that would last for a short time. Calvinism came quickly into German andas a third Christian group in Germany, but it was not part of the Peace of Augsburg. That meant that Calvinists argued with both Lutherans and Catholics.

Secondly, the powerful countries in Europe in the 17th century often disagreed about matters of politics or economics. Spain wanted land in some of the German states because the Germans owned some of the Spanish Netherlands. The Dutch fought the Spanish to get independenceand got it in some wars that ended in 1609.

  • France was afraid of the two Habsburg states on both of its sides (Spain and the Holy Roman Empire). France wanted to show its power to the weak German states.
  • Sweden and Denmark wanted to control the German states in the north next to the Baltic Sea.
Emperor Rudolf II said that Protestants could have religious rights.

Thirdly, the Holy Roman Empire was a broken group of nations inside a bigger empire. The empire had nations like the Austrian House of Habsburg, Bavaria, the Electorate of Saxony, the Margravate of Brandenburg, the Electorate of the Palatinate, Hesse, the Archbishopric of Trier and Württemberg and other small nations and towns. Only Austria was capable of operating on its own. Countries often made alliances with other places ruled by relatives. Because there were so many nations inside the empire, the nations disagreed with one another often, and the government could not control the whole empire very well. This meant that the government could not fix the problems in the country.

Fourthly, religious groups did not agree during the second half of the 16th century. The Peace of Augsburg was not working because some bishops had not given up their bishoprics, and Catholic rulers in Spain and Eastern Europe wanted to make Catholicism strong in the region. This caused fighting between the groups. The Catholics made many Protestants leave their home lands. Some places gave Protestants permission to worship. The disagreements caused violence.

Ferdinand II, Holy Roman Emperor and King of Bohemia had a firm Catholicism, the major reason for the war.
Frederick V, Elector Palatine as King of Bohemia, in 1634, two years after he died. Frederick is called the "Winter King" of Bohemia because he reigned for less than three months in 1620. He was put in power by a rebellious faction.

Fifthly, the Holy Roman Emperor Matthias, a Catholic, died without any children to take his place in 1619. His lands were given to his cousin Ferdinand of Styria, Matthias's closest male relative, who became Ferdinand II, Holy Roman Emperor. Ferdinand had been educated by the Jesuits. A Catholic, he wanted to make Catholicism the only religion again. This made him unpopular in the German state of Bohemia sinc most people there were not Catholics but Hussites. They rejected Ferdinand and launched the Thirty Years' War. The war can be divided into four major phases: the Bohemian Revolt, the Danish intervention, the Swedish intervention, and the French intervention.

Bohemian Revolt[change | change source]

Time: 1618–1625

Emperor Mattias, who had no children, wanted to give the throne of the Holy Roman Empire to Ferdinand II when he died. To ensure that the transition would work, he wanted to make Ferdinand the Crown Prince of Bohemia, a country that was part of the Holy Roman Empire, in the meantime. Some of the Protestant leaders of Bohemia thought that Ferdinand would take away their religious rights. They liked the Protestant Frederick V, Elector of the Palatinate better. However, some of the other Protestants supported Ferdinand. Enough people preferred Ferdinand that in 1617, he was elected to become the Crown Prince of Bohemia.

Ferdinand sent two Catholic governors to Prague, the capital of Bohemia, in May 1618. Ferdinand wanted them to run the government while he was gone. Suddenly, many angry Protestants took them and threw them out of the high palace window. The Defenestration of Prague), that made the Catholics angry with the Protestants.

The Protestants who had thrown the Catholics out the window created a new Protestant government in Bohemia. Many Protestants in Bohemia and the nearby countries started hating the rest of the Holy Roman Empire. The Holy Roman Empire wanted to stop them from doing so, to fight Bohemia, and borrow Spain's money. However, they thought that if that happened, Bohemia's Protestant friends might come in and start fighting them. That made them try to make an agreement with Bohemia to stop the fighting. However, when Emperor Matthias died in 1619, Bohemia decided not to make the agreement because they thought the Holy Roman government was weak now.

Bohemia was so angry about the Catholics it they decided to not make Ferdinand II the king of Bohemia anymore andbut made Frederick V the king instead. However, because Matthias was dead and so Ferdinand was the next person waiting to be the emperor, Ferdinand was in charge of the whole Holy Roman Empire now. Some people also thought Frederick should not be allowed to be king of Bohemia.All of that made the Holy Roman Emperor decide to fight Bohemia.

A large army got money from Maximilian I was led by Count Tilly invaded Bohemia. At the Battle of White Mountain, the Holy Roman Empire beat the Bohemian rebels. Frederick ran away. and the revolt collapsed.

Frederick was also in charge of a German nation called the Palatinate. Maximilian I, who was in charge of a nearby nation, Bavaria, wanted more power and decided to take over some of the Palatinate. Spain, a Catholic country,. joined the war to help Maximilian, who was disliked in the Netherlands. Other countries now became involved in this war. After some fighting, Maximilian and Spain won, and Emperor Ferdinand decided that all of the Palatinate should go to Maximilian. That made some of the other Protestant nations very scared because that meant that Protestant areas were being taken over by Catholics.

Related pages[change | change source]