Ivan van Aalst was born circa 1091 to Boudewijn II van Gent (c1055-1097) and Reignewif and died 8 August 1145 of unspecified causes. He married Laurette of Flanders (c1125-1170) 1139 JL .
Children
| Name | Birth | Death | Joined with |
| Dirk van Aalst (1144-1166) | 1144 | 20 April 1166 | Laurette de Hainaut (1150-1181) |
Residences
Footnotes (including sources)
| ‡ General |
| Ω Birth |
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