Gauthier II Alost de Termonde was born circa 1160 to Gauthier I de Termonde (c1120-1171) and Renewif van Eename and died 1189 of unspecified causes. He married Adelaide de Rozoy (c1172-1209) .
Children
| Name | Birth | Death | Joined with |
| Mahaut de Termonde (c1183-1224) | 1183 | 1224 | Guillaume II de Béthune (c1160-1213) |
Footnotes (including sources)
| ‡ General |