See also
| Husband: | William de ROS (c. 1196-1258) | |
| Wife: | Lucy FITZPIERS (c. 1210- ) | |
| Children: | Alicia de ROS (c. 1225- ) | |
| Name: | William de ROS | |
| Sex: | Male | |
| Father: | Robert de ROS (c. 1170- ) | |
| Mother: | Isabel of SCOTLAND (c. 1170- ) | |
| Birth | c. 1196 | Helmsley, North Riding of Yorkshire, England |
| Death | 1258 (age 61-62) | Kirkham, Yorkshire, England |
| Name: | Lucy FITZPIERS | |
| Sex: | Female | |
| Father: | Piers FITZHERBERT (c. 1165-1235) | |
| Mother: | Alice FITZROBERT (c. 1185- ) | |
| Birth | c. 1210 | Forest Dean, Gloucestershire, England |
| Name: | Alicia de ROS | |
| Sex: | Female | |
| Spouse: | John 'the Red' COMYN (c. 1220- ) | |
| Birth | c. 1225 | |