1. GERALD I¹ DE WASSENBERG, COUNT OF GUELDERS was born between 1018/9 and 1085, and died between 1078 and 1195. ^[3]
Child:

+

2

i.

YOLANDE2 OF GUELDERS, b. about 1089 in Gueldres, Rhineland, Germany; d. about 1160; m. in 1107 (V-22) COUNT BALDWIN III OF HAINAUT, b. in 1087, d. in 1120[1], son of (V-20) Count Baldwin II and (ALK-19) Ida (of LOUVAIN).

2. YOLANDE² OF GUELDERS (Gerald I de WASSENBERG¹), daughter of (1) Gerald I¹, Count of Guelders, was born between 1043/4 and 1093 in Gueldres, and died between 1107 and 1203. She married in 1107, (V-22) COUNT BALDWIN III OF HAINAUT, son of (V-20) Count Baldwin II and (ALK-19) Ida (of LOUVAIN), who was born in 1087, and died in 1120^[1]. ^{[2, 3, 4]}
Children: See (V-22) Count Baldwin III of HAINAUT