Robert de Brus, 4th Lord of Annandale, was born circa 1195 to William de Brus (-1212) and died after 1225 of unspecified causes. He married Isobel of Huntingdon (1199-1251) 1219 JL .
Children
| Name | Birth | Death | Joined with |
| Robert de Brus (c1210-1295) | 1210 | 31 March 1295 Lochmaben Castle, Lochmaben, Scotland, United Kingdom | Isabel de Clare (1226-1264) Christina de Ireby (-c1305) |
| Bernard de Brus (-1266) | |||
Footnotes (including sources)
| ‡ General |
| ¶ Death |
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