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Male Welf I von ALTDORF Click to view Welf I von ALTDORF in the family tree

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.  His paternal grandparents were Engilbert II D'ALTDORF and Berthe  D'ALEMANIE; his maternal grandparents were Pepin 'The Short' CAROLINGIANS and Berthe (Bertrada) 'Broadfoot' de LAON.  He was an only child.  He died in Bavaria, Schwaben, Germany.


Welf I von's family with Engilwich Hedwig WITTELSBACH

They had a son named Konrad I de.