When was Welf I, Count of Altdorf born?

Welf I, Count of Altdorf was born on 0778-01-01.

When did Welf I, Count of Altdorf die?

Welf I, Count of Altdorf died on 0825-10-03.

Who were Welf I, Count of Altdorf's parents?

Welf I, Count of Altdorf's parents were Irmentruda Thiedrada von Nagolzgau and Gelph Count of Altdorf and Argengau and Rothard van de Argengau and Welpo (or Isebrand) Count in Bavaria.

Welf I, Count of Altdorf

father of Judith of Bavaria (0778–0825)

Parents

Irmentruda Thiedrada von Nagolzgau
Gelph Count of Altdorf and Argengau
Rothard van de Argengau
Welpo (or Isebrand) Count in Bavaria

Children

unknown daughter von Altdorf
Judith of Bavaria
Conrad I, Count of Auxerre
Hemma
Rudolph

Partners

Hedwig