WILLIAM I COUNT de HOLLAND & ADELAIDE (Countess) de GUELDERS 
WILLIAM I COUNT and ADELAIDE (Countess) were married in a religious ceremony in 1198.1 They had a son named FLORENZ IV COUNT.
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Children
FLORENZ IV COUNT de HOLLAND
FLORENZ IV COUNT was born on June 24th, 1210.1 He died at the age of 24 on July 19th, 1234.1
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