• Born: Between 970 and 975, Schweinfurt, Unterfranken, Bayern
• Married: Before 1003
• Died: 18 Sep 1017

  Research Notes:

His parentage is specified in the Annalista Saxo. His birth date range is based on his parents' estimated marriage date.

Graf an der unteren Naab 981. Graf an der unteren Altmühl 983. Markgraf auf dem bayerischen Nordgau 994. Graf im Radenzgau 1002. He rebelled against Heinrich II King of Germany in 1003 on the grounds that he had not been granted the duchy of Bavaria as promised and allied himself with Bohemia and Poland. His rebellion was crushed and King Heinrich set up the bishopric of Bamberg to provide central control in the area in place of the margravate of bayerischen Nordgau. Graf an der Pegnitz 1009 and 1011. Graf an der oberen Naab 1015.

Thietmar records the death 18 Sep 1017 of "Markgraf Heinrich my aunt's son and the glory of eastern Franconia". ¹