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Male Count Welf Isembart of Altdorf & Thurgau Click to view Count Welf Isembart of Altdorf & Thurgau in the family tree

Welf Isembart's father was Count Ruthard of Altdorf and his mother was Hermelindis of Spoleto.  His paternal grandfather was Duke Eberhard I of Alsace and his paternal grandmother is Ermengarde; his maternal grandfather was Duke Hildebrande of Spoleto and his maternal grandmother is Regarde von Bayern of Tyrol.  He was an only child.


Welf Isembart's family with Irmentruda Theidrada von Nagolzgau of Germany

They had a son named Welf.

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