II Welf 
He had a biological son named Welf Count in the.
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Children
Welf Count in the Entgau , Bavaria and Swabia
Welf Count in the was born in 0776 in Altdorf, Bavaria. He died at the age of 43 in 0819.
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II Welf Welf Count in the Entgau , Bavaria and Swabia