Origins & Early Life

Conrad (25 April 1228 – 21 May 1254), a member of the Hohenstaufen dynasty, was the only son of Emperor Frederick II from his second marriage with Queen Isabella II of Jerusalem. He inherited the title of King of Jerusalem (as Conrad II) upon the death of his mother in childbirth. Appointed Duke of Swabia in 1235, his father had him elected King of Germany (King of the Romans) and crowned King of Italy (as Conrad IV) in 1237. After the emperor was deposed and died in 1250, he ruled as King of Sicily (Conrad I) until his death.

Pivotal Works & Achievements

He was the second child, but only surviving son of Emperor Frederick II and Isabella II (Yolanda), the queen regnant of Jerusalem. Born in Andria, in the South Italian Kingdom of Sicily, his mother died shortly after giving birth to him and he succeeded her as monarch of the Crusader state of Jerusalem. By his father, Conrad was the grandson of the Hohenstaufen emperor Henry VI and great-grandson of Emperor Frederick Barbarossa. He lived in Southern Italy until 1235, when he first visited the Kingdom of Germany. During this period his kingdom of Jerusalem, ruled by his father as regent through proxies, was racked by civil war until Conrad declared...

Enduring Legacy & Impact

The historical impact and works continue to influence the modern world.

Contemporary Figures & Related Historical Timelines

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• Pope Innocent IV — Contemporary (Died in 1254) (1254): Pope Innocent IV, a powerful canonist who governed the Church from 1243 to 1254.
• Zhao Mengfu — Contemporary (Born in 1254) (1254): Master calligrapher, painter, and scholar of the Yuan Dynasty.
• Al Pacino — Shared historical date (04-25 · Born) (1940): Intense American actor celebrated for his powerful stage and screen performances.
• Albert Uderzo — Shared historical date (04-25 · Born) (1927): Pioneering French comic artist, co-creator of the iconic Astérix series.
• Alasdair MacIntyre — Shared historical date (05-21 · Died) (2025): Influential Scottish-American philosopher known for virtue ethics and political theory.
• Albrecht Dürer — Shared historical date (05-21 · Born) (1471): Master of the German Renaissance, renowned painter, printmaker, and theorist.
• Drogön Chögyal Phagpa — Historical peer (Born in 1235) (1235): First Imperial Preceptor of the Yuan Dynasty and fifth leader of the Sakya school.
• Ibn al-Farid — Historical peer (Died in 1235) (1235): Master Sufi Poet of the Arab World, celebrated for mystical verse.
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