Welf I of Argengaid Count in the Argengau Count in the Argengau, son of Count Warinus and Unknown Ara.
Married/ Related to:
Irmentrudeof Swabia, daughter of Gerold I von Schwaben and Imma Emma D'alamania.
1. II Welf
Born 787 at Andech, died 818, 30 or 31 years