Isembart II D'ALTDORF & Hermengarde CAROLINGIANS 
They had a son named Welf I von.
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Personal Details
Isembart II D'ALTDORF
Isembart II was born about 0755 in Altdorf, Uri Canton, Switzerland. He died in 0805.
Hermengarde CAROLINGIANS
Hermengarde was born about 0750 in Aachen, North-Rhine, Westphalia, Prussia.
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Children
Welf I von ALTDORF
Welf I von was born about 0778 in Altdorf, Uri Canton, Switzerland. He died in Bavaria, Schwaben, Germany.