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Henry IX, Duke of Bavaria

Henry IX, Duke of Bavaria

Duke of Bavaria
The basics
About
Date of birth
Date of death Dec 13, 1126 Ravensburg, Landkreis Ravensburg, Tübingen, Baden-Württemberg
Family
Children: Henry X, Duke of Bavaria Judith of Bavaria, Duchess of Swabia Welf VI Conrad of Bavaria Sophia van Beieren Mathilde of Bavaria
Spouse: Wulfhilde of Saxony
Mother: Judith of Flanders (died 1095)
Brother(s): Welf II Duke of Bavaria
Father: Welf I, Duke of Bavaria
Authority VIAF id
The details
Biography

Henry IX (1075 – 13 December 1126), called the Black, a member of the House of Welf, was Duke of Bavaria from 1120 to 1126.

Life and reign

Henry was the second son of Duke Welf I of Bavaria (d. 1101) from his marriage with Judith, daughter of Count Baldwin IV of Flanders. As a young man, he administered the family's Este property south of the Alps.

Through his marriage to Wulfhilde, daughter of Duke Magnus of Saxony, about 1095, he acquired part of the Billung estates around Lüneburg (the nucleus of the later Welf duchy of Brunswick-Lüneburg). He aspired to succeed his father-in-law as Saxon duke when Magnus died without male heirs in 1106, but was denied as the new king Henry V enfeoffed his follower Count Lothair of Supplinburg.

Duke Henry nevertheless upheld close relations with the ruling Salian dynasty. In 1116, he joined Emperor Henry V's second Italian campaign to seize the estates of late Margravine Matilda of Tuscany. He succeeded his elder brother Welf II as Bavarian duke, when the latter died childless in 1120. Henry was also instrumental in bringing about the 1122 Concordat of Worms, ending the long-lasting Investiture Controversy between Pope and Emperor.

Upon the emperor's death, Duke Henry played a vital role in the royal election of 1125: first supporting his son-in-law, the Hohenstaufen duke Frederick II of Swabia, he switched his allegiance to his old rival Duke Lothair of Saxony —probably after Lothair promised that Gertrude, his only daughter and heir, would marry Henry's son Henry the Proud. The marriage was concluded in May 1127. The estrangement between the Welf and Hohenstaufen dynasties ("Guelphs and Ghibellines") lasted until the 13th century.

After Lothair won the tumultuous election, he imposed an Imperial ban on Frederick II, however, the king's forces were not able to conquer the Hohenstaufen territories in Swabia. In 1126 Henry abdicated as Bavarian duke in favour of his second son Henry the Proud and retired to the family foundation of Weingarten Abbey in Upper Swabia, possibly to not be obliged to participate in the prosecution of his son-in-law.

Henry died shortly thereafter and was buried in Weingarten. His wife Wulfhilde outlived him by only 16 days. Henry's epithet "the Black" has not been recorded before the 13th century. Both Emperor Frederick Barbarossa and his bitter rival Henry the Lion were his grandsons.

Issue

Henry and Wulfhilde had the following children:

Literature

  • Bernd Schneidmüller: Die Welfen. Herrschaft und Erinnerung (819–1252) (= Urban-Taschenbücher 465). Kohlhammer, Stuttgart etc., 2000, ISBN 3-17-014999-7, pp. 149 ff.
  • ; (full text online)
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