Thirty Years' War
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50 free Thirty Years' War trivia questions with answers — history quiz, new questions added Aug 2026.
The Thirty Years' War ran from 1618 to 1648 and killed somewhere between 4.5 and 8 million people, most of them civilians who died of plague and famine rather than battle. It began with two imperial officials being thrown from a window in Prague and ended with a congress in Westphalia that redrew the map of the Holy Roman Empire and, some argue, invented the modern sovereign state. These 50 questions walk through the whole conflict: the Bohemian Revolt and White Mountain, Christian IV's Danish gamble, Gustavus Adolphus landing in Pomerania, Breitenfeld and Lützen, Wallenstein's murder, Richelieu's money, Rocroi and the Swedish raid on Prague in the last months. Easy questions stick to dates, leaders and the big treaties; the expert tier asks about the Finnish shock cavalry, the Normaljahr, the Swedish village that lost 215 of 230 conscripts and the manuscript looted from Prague that now sits in Stockholm. Every answer is cited to a page we checked, with a short explanation that adds something even when you miss. Play it solo or print it for a history night.
30 of 50 questions with answers and explanations. Play the quiz
Q 01Which war between Spain and the Dutch became part of the Thirty Years' War and ended in the same year?
Eighty Years' War
The Eighty Years' War began as a Dutch revolt against Spanish rule in 1568, paused for a twelve-year truce in 1609, and resumed in 1621 as one front of the wider European struggle.
Q 02Where was most of the Thirty Years' War fought?
Central Europe
Central Europe, above all the German lands, was ravaged because the unpaid mercenary armies of every side lived off the countryside they marched through.
Q 03Which 1648 settlement ended the Thirty Years' War?
Peace of Westphalia
The Peace of Westphalia left each German state free to run its own affairs, and it is often credited with founding the modern system of sovereign states, a claim some historians dispute.
Q 04Which 1555 settlement divided the Holy Roman Empire into Catholic and Lutheran states?
Peace of Augsburg
The Peace of Augsburg let each prince choose Lutheranism or Catholicism for his lands and made that faith binding on his subjects, though those who dissented were free to sell up and emigrate.
Q 05Frederick V held the Bohemian throne so briefly in 1619–20 that he was mocked with which nickname?
The Winter King
The Winter King lost far more than Bohemia: after his army was routed in November 1620 the emperor outlawed him, and in 1623 gave his electoral title to Maximilian of Bavaria.
Q 06The Thirty Years' War began when two Habsburg officials were thrown from a window of which building in 1618?
Prague Castle
Prague Castle: the two regents and their secretary all survived the fall, which Catholics credited to angels and Protestant writers to a dung heap below the window.
Q 07Which November 1620 battle destroyed the Bohemian army and sent King Frederick V fleeing?
White Mountain
White Mountain was over in about an hour, and the victors made it count: the rebel leaders were tried and executed, and Protestants were driven out of Bohemia.
Q 08Who led the Catholic League army that Maximilian of Bavaria funded against the Bohemian rebels in 1620?
Count Tilly
Count Tilly had been in Maximilian's service since 1610, building the Bavarian force that became the backbone of the Catholic League army he now led against the rebels.
Q 09Gustavus Adolphus died as the Protestant cause's champion, yet which daughter and heir later abdicated and became a Catholic?
Christina
Christina inherited Sweden's crown at five, when her father fell in battle in 1632, then gave it up in 1654 and moved to Rome, where she died in 1689.
Q 10At which November 1632 battle was Sweden's King Gustavus Adolphus killed?
Lützen
Lützen cost the king his life when he strayed into enemy cavalry in the smoke and was shot from his horse, yet the Imperial army left the field at dusk and the Swedes claimed the victory.
Q 11Which imperial generalissimo was assassinated by his own officers at Cheb in 1634?
Wallenstein
Wallenstein was suspected of plotting to change sides, so the emperor he had served stripped him of command and charged him with treason, and he was dead within days.
Q 12Which French minister agreed to bankroll the Swedes under the 1631 Treaty of Bärwalde?
Cardinal Richelieu
Cardinal Richelieu had crushed Protestant revolts at home, yet he paid Protestant Sweden to fight the Catholic Habsburgs, whose lands hemmed France in on almost every side.
Q 13Which German dramatist wrote a history of the Thirty Years' War and then a stage trilogy about one of its generals?
Friedrich Schiller
Q 21Which commander of Spain's army in the Netherlands had to secure the Spanish Road before the Dutch truce expired?
Ambrosio Spinola
Ambrosio Spinola was a Genoese noble who had raised his first army at his own expense; Spain never repaid the fortune he pledged for its wars, and he ended his life financially ruined.
Q 22What was the 'Spanish Road'?
An overland route from Italy to Flanders
An overland route from Italy to Flanders, it let Spain march troops north from Milan because ships in the Channel were at the mercy of the Dutch navy, until France cut the road in the 1630s.
Q 23Which Dutch admiral beat the Spanish at the Downs in October 1639?
Friedrich Schiller was a history professor at Jena when he published his account of the war in the 1790s, and he mined it for the verse trilogy often called his greatest drama.
Q 14Which city's sack in May 1631 became a warning of what imperial victory would mean?
Magdeburg
Magdeburg lost some 20,000 people to massacre and fire, and the news became a rallying cry that pushed wavering Protestant princes into alliance with Sweden.
Q 15At which September 1631 battle did Gustavus Adolphus rout Tilly's traditionally organised army?
Breitenfeld
Breitenfeld, fought just outside Leipzig, destroyed the main army facing the Swedes, their enemies' first major defeat in thirteen years of war, and let them overrun central Germany.
Q 16At which April 1632 battle on the River Lech was the veteran general Tilly mortally wounded?
Rain
Rain was where Tilly tried to stop the Swedes crossing into Bavaria; his thigh was shattered early in the fight, he died two weeks later, and the duchy lay open to invasion.
Q 17Which September 1634 defeat cost Sweden control of southern Germany?
Nördlingen
Nördlingen was won when a Spanish army joined the emperor's troops, but the triumph backfired: within a year France entered the war openly to stop a Habsburg victory.
Q 18Which future philosopher served as a young volunteer in Maximilian of Bavaria's Catholic army in 1619–20?
René Descartes
René Descartes had spent the previous year training with the Protestant army of Maurice of Nassau in the Netherlands before he joined the Catholic side in Germany.
Q 19Which 1629 measure did Ferdinand II largely abandon in the 1635 Peace of Prague?
Edict of Restitution
The Edict of Restitution had ordered Protestants to hand back church lands; shelving it won most Lutheran princes over to the emperor, and the war became a contest with foreign powers.
Q 20Which French king inherited the throne as a small child in 1643, with France deep in the Thirty Years' War?
Louis XIV
Louis XIV was only four, so Cardinal Mazarin steered France through the rest of the war, and the boy king went on to reign for 72 years.
Maarten Tromp
Maarten Tromp attacked a Spanish fleet sheltering in the Downs, an anchorage off Kent that was supposed to be protected by English neutrality, and the defeat ended Spain's power at sea.
Q 24Which French commander crushed the Army of Flanders at Rocroi on 19 May 1643?
Condé
Condé, then the 21-year-old duc d'Enghien, was winning his first victory as a commander, and Rocroi shattered the long-held belief that Spain's tercios were invincible.
Q 25The Torstensson War began in December 1643 when Sweden invaded which Danish territory?
Jutland
Jutland was overrun within weeks by a Swedish army marching up from Germany, but Christian IV's fleet kept the invaders off the Danish islands, and the king lost an eye fighting at sea.
Q 26Christian IV of Denmark joined the Thirty Years' War in 1625 as duke of which German territory?
Holstein
Holstein lay inside the Holy Roman Empire, so Denmark's king was also an imperial prince, and the Protestant states of the Lower Saxon Circle elected him their military commander.
Q 27Gabriel Bethlen, the Calvinist prince who attacked the Habsburgs from the east in 1619, ruled which principality?
Transylvania
Transylvania's prince overran much of Habsburg Hungary and was elected its king in 1620, yet he was never crowned and gave the title up when he made peace the next year.
Q 28Emperor Ferdinand II, whose drive against Protestants lit the Thirty Years' War, was educated by which Catholic order?
The Jesuits
The Jesuits taught him at Ingolstadt, where his parents sent him to keep him away from Styria's Lutheran nobles, and soon after taking power he set about stamping out Protestantism in his lands.
Q 29Alexander Leslie, whom Gustavus Adolphus sent to hold Stralsund in 1628, was a soldier from which country?
Scotland
Scotland got him back in the end: Leslie rose to field marshal in Swedish service, then went home to command the Covenanter army against Charles I.
Q 30Frederick V married which daughter of James I of England in 1613?
Elizabeth
Elizabeth lost her Bohemian crown after little more than a year, yet her line won a greater one: her daughter's son became George I of Great Britain in 1714.