Background
Welf was the oldest son of Welf I, Duke of Bavaria, and his wife Judith of Flanders.
Welf was the oldest son of Welf I, Duke of Bavaria, and his wife Judith of Flanders.
In the Welf genealogy, he is counted as Welf V.
During King Henry IV"s Italian campaign of 1090, Welf and Matilda fought against the King. After his father"s death in 1101 Welf indeed inherited the office of duke of Bavaria. He continued his alliance with the kings.
He did not remarry and died childless in 1120.
Welf was buried at Weingarten Abbey.