Rudolf of Habsburg (1 May 1218 – 15 July 1291) was a German nobleman and the first member of the House of Habsburg to become King of the Romans, reigning from 1273 until his death. Born into a relatively minor noble family, Rudolf succeeded his father as Count of Habsburg in 1240, gradually expanding his power through military campaigns, political alliances, and the construction of key fortresses such as Neuhabsburg Castle. His marriage to Gertrude of Hohenberg further strengthened his position among the Swabian nobility. During the turbulent period of the Great Interregnum, Rudolf distinguished himself both as a formidable military leader—participating in regional conflicts and even joining the Prussian Crusade in 1254—and as a restorer of order, often intervening against robber barons and feuding nobles. Despite facing excommunication due to disputes with the Church, Rudolf ultimately reconciled with ecclesiastical authorities and built a reputation for fairness and pragmatism. In 1273, he was elected King of the Romans, ending decades of imperial vacancy and division. As king, Rudolf reasserted imperial authority in Germany, notably defeating King Ottokar II of Bohemia and securing Habsburg control over Austria, Styria, and Carinthia. His reign laid the foundations for the rise of the Habsburg dynasty, which would become one of the most influential royal houses in European history. Rudolf died in 1291, leaving a legacy of restored stability and dynastic ambition within the Holy Roman Empire.
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Rudolph I of Germany in the context of House of Habsburg
The House of Habsburg (/ˈhæpsbɜːrɡ/; German: Haus Habsburg, lit. 'House of the Hawk's hill' [haʊs ˈhaːbsbʊrɡ] ), also known as the House of Austria, was one of the most powerful dynasties in the history of Europe and Western civilization. They were best known for ruling vast realms throughout Europe and the Americas during the Middle Ages and early modern period, including the Holy Roman Empire and Spain.
The house takes its name from Habsburg Castle, a fortress built in the 1020s in present-day Switzerland by Radbot of Klettgau, who named his fortress Habsburg. His grandson Otto II was the first to take the fortress name as his own, adding "Count of Habsburg" to his title. In 1273, Count Radbot's seventh-generation descendant, Rudolph, was elected King of the Romans. Taking advantage of the extinction of the Babenbergs and of his victory over Ottokar II of Bohemia at the Battle on the Marchfeld in 1278, he appointed his sons as Dukes of Austria and moved the family's power base to Vienna, where the Habsburg dynasty gained the name of "House of Austria" and ruled until 1918.
Rudolph I of Germany in the context of Battle on the Marchfeld
The Battle on the Marchfeld (i.e. Morava Field; German: Schlacht auf dem Marchfeld / Schlacht bei Dürnkrut und Jedenspeigen; Czech: Bitva na Moravském poli; Hungarian: Második morvamezei csata / dürnkruti csata; Polish: Bitwa pod Suchymi Krutami) at Dürnkrut and Jedenspeigen took place on 26 August 1278 and was a decisive event for the history of Central Europe for the following centuries. The opponents were a Bohemian (Czech) army led by the Přemyslid king Ottokar II of Bohemia and the German army under the German king Rudolph I of Habsburg in alliance with King Ladislaus IV of Hungary. With 15,300 mounted troops, it was one of the largest cavalry battles in Central Europe during the Middle Ages. The Hungarian cavalry played a significant role in the outcome of the battle.
King Ottokar II of Bohemia expanded his territories considerably from 1250 to 1273, but suffered a devastating defeat in November 1276, when the newly elected German king Rudolph I of Habsburg imposed the Imperial ban on Ottokar, declaring him an outlaw and took over Ottokar's holdings in Austria, Carinthia, Carniola, and Styria. Ottokar was reduced to his possessions in Bohemia and Moravia, but was determined to regain his dominions, power, and influence. In 1278 he invaded Austria, where parts of the local population, especially in Vienna, resented Habsburg rule. Rudolf allied himself with King Ladislaus IV of Hungary and mustered forces for a decisive confrontation.
Rudolph I of Germany in the context of Duke of Swabia
The Dukes of Swabia were the rulers of the Duchy of Swabia during the Middle Ages. Swabia was one of the five stem duchies of the medieval German kingdom, and its dukes were thus among the most powerful magnates of Germany. The most notable family to rule Swabia was the Hohenstaufen family, who held it, with a brief interruption, from 1079 until 1268. For much of that period, the Hohenstaufen were also Holy Roman Emperors. With the death of Conradin, the last Duke of Hohenstaufen, the duchy itself disintegrated although King Rudolf I attempted to revive it for his Habsburg family in the late 13th century.
Rudolph I of Germany in the context of Werner I, Count of Habsburg
Werner I, Count of Klettgau was a nobleman and an early member of the House of Habsburg. He was an ancestor of King Rudolph I of Germany.
Werner was sometimes called Werner the Pious. His father was Radbot of Klettgau, and his mother was Ida de Lorraine (also known as Ita von Lothringen), who was the daughter of Frederick I, Duke of Upper Lorraine and Beatrice of France.