Welf I von ALTDORF 
Welf I von was born in 0778 in Altdorf, Uri Canton, Switzerland. Welf I von's father was Isembart II d' ALTDORF and his mother was Hermengarde CAROLINGIANS. He was an only child. He died in Bavaria, Schwaben, Germany.
They had a daughter named Judith Andech von.
-
Children
Judith Andech von ALTDORF
Judith Andech von was born about 0800 in Altdorf, Uri Canton, Switzerland. She died in Tours, Indre-et-Loire, France.