Gerard I, Count of Guelders was Count of Guelders. He was the son of Theodoric of Wassenberg.
He may have been married to Clementia of Aquitaine, although that proposed marriage seems to be based on a falsified document. It is also possible that... Wikipedia
Born: 1060
Died: March 8, 1129 (age 69 years)
Grandchildren: Henry I, Count of Guelders, Richilde de Hainault, Walram III van Arlon, and more
Partner: Clementia of Aquitaine (1089–) and Sophia
Children: Gerard II, Count of Guelders, Yolande de Wassenberg, and Judith of Guelders
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