The Thirty Years' War was one of the longest and most destructive conflicts in European history, lasting from 1618 to 1648. Fought primarily in Central Europe, an estimated 4.5 to 8 million soldiers and civilians died as a result of battle, famine, or disease, while parts of present-day Germany reported population declines of over 50%. Related conflicts include the Eighty Years' War, the War of the Mantuan Succession, the Franco-Spanish War, the Torstenson War, the Dutch-Portuguese War, and the Portuguese Restoration War.
The Battle of Lützen, fought on 6 November 1632, is considered one of the most important battles of the Thirty Years' War. Led by the Swedish king Gustavus Adolphus, an Allied army primarily composed of troops from Sweden, Saxony, and Hesse-Kassel, narrowly defeated an Imperial force under Albrecht von Wallenstein. Both sides suffered heavy casualties, with Gustavus himself among the dead.
The Battle of Nördlingen took place on 6 September 1634 during the Thirty Years' War. A combined Imperial-Spanish force inflicted a crushing defeat on the Swedish-German army.
Johann Tserclaes, Count of Tilly was a field marshal who commanded the Catholic League's forces in the Thirty Years' War. From 1620–31, he had an unmatched and demoralizing string of important victories against the Protestants, including White Mountain, Wimpfen, Höchst, Stadtlohn and the Conquest of the Palatinate. He destroyed a Danish army at Lutter and sacked the Protestant city of Magdeburg, which caused the death of some 20,000 of the city's inhabitants, both defenders and non-combatants, out of a total population of 25,000.
Matthias Gallas, Graf von Campo und Herzog von Lucera was an Italian professional soldier during the Thirty Years' War. He distinguished himself in the first half of the war in service of the Catholic League, in the War of the Mantuan Succession, and as one of Albrecht von Wallenstein's Generals. After carrying out the dismissal and elimination of Wallenstein, Gallas became acting supreme commander of the Imperial Army three times between 1634 and 1647 but he never held the function or authority of a Generalissimo.
Maximilian I, occasionally called the Great, a member of the House of Wittelsbach, ruled as Duke of Bavaria from 1597. His reign was marked by the Thirty Years' War during which he obtained the title of a Prince-elector of the Holy Roman Empire at the 1623 Diet of Regensburg.
Ottavio Piccolomini, 1st Duke of Amalfi was an Italian nobleman whose military career included service as a Spanish general and then as a field marshal of the Holy Roman Empire.
The Peace of Prague, dated 30 May 1635 Old Style, was a significant turning point in the Thirty Years' War. Signed by John George I, Elector of Saxony, and Ferdinand II, Holy Roman Emperor, the terms ended Saxony's support for the anti-Imperial coalition led by Sweden.
The Battle of Jankau, also known as Jankov, Jankow, or Jankowitz, took place in central Bohemia on 6 March 1645, near modern Czech town of Jankov. One of the last major battles of the 1618 to 1648 Thirty Years' War, it was fought between Swedish and Imperial armies, each containing around 16,000 men. The more mobile and better led Swedes under Lennart Torstensson effectively destroyed their opponents, commanded by Melchior von Hatzfeldt. However, the devastation caused by decades of conflict meant armies now spent much of their time obtaining supplies, and the Swedes were unable to take advantage.
The siege of Nuremberg was a campaign that took place in 1632 about the Imperial City of Nuremberg during the Thirty Years' War.
The Battle of Zusmarshausen was fought on 17 May 1648 between Bavarian-Imperial forces under von Holzappel and an allied Franco-Swedish army under the command of Carl Gustaf Wrangel and Turenne in the modern Augsburg district of Bavaria, Germany. The allied force emerged victorious, and the Imperial army was only rescued from annihilation by the stubborn rearguard fighting of Raimondo Montecuccoli and his cavalry.
The Battle of Dessau Bridge was a significant battle of the Thirty Years' War between Danish Protestants and the Imperial German Catholic forces on the Elbe River outside Dessau, Germany on 25 April 1626.
The Battle of the Alte Veste was a significant battle of the Thirty Years' War in which Gustavus Adolphus' attacking forces were defeated by Wallenstein's entrenched troops.
The Treaty of Fontainebleau was signed on 30 May 1631 during the Thirty Years' War, at the Palace of Fontainebleau. It was a pact of mutual assistance between Maximilian I, Elector of Bavaria, and France, for a period of eight years.
The Battle of Herbsthausen, also known as the Battle of Mergentheim, took place near Bad Mergentheim, in the modern German state of Baden-Württemberg. Fought on 5 May 1645, during the Thirty Years War, it featured a French army led by Turenne, defeated by a Bavarian force under Franz von Mercy.
The Treaty of Bärwalde, signed on 23 January 1631, was an agreement by France to provide Sweden financial support, following its intervention in the Thirty Years' War.
The Swedish invasion of the Holy Roman Empire or the Swedish Intervention in the Thirty Years' War is a historically accepted division of the Thirty Years' War. It was a military conflict that took place between 1630 and 1635, during the course of the Thirty Years' War. It was a major turning point of the war: the Protestant cause, previously on the verge of defeat, won several major victories and changed the direction of the War. The Habsburg-Catholic coalition, previously in the ascendant, was significantly weakened as a result of the gains the Protestant cause made. It is sometimes considered to be an independent conflict by historians.
Johann Philipp Kratz von Scharffenstein was a German nobleman and field marshal, who fought during the course of the Thirty Years' War. He served with distinction in forces of both the Catholic League and Holy Roman Empire. His poor relationship with the Imperial generalissimo Albrecht von Wallenstein frustrated his plan of becoming the supreme commander of the League's forces. Embittered by this he defected to Sweden, where he attained the rank of field marshal. He was captured at the Battle of Nördlingen in 1634 and executed for treason a year later.
The Battle of Bamberg took place on 9 March 1632 during the Thirty Years' War. The army of the Catholic League led by Count Tilly surprised and routed the Swedes led by Gustav Horn and captured the city.
The Bavarian campaign was a Franco–Swedish campaign into Bavaria in 1646 to 1647 in an attempt to remove Bavaria as an active belligerent in the ongoing Thirty Years' War.
Sweden 
Saxe-Weimar 
Holy Roman Empire 
Catholic League 
