See also
| Partner: | Thomas de BORTHWICK (c. 1315-1360) | |
| Partner: | (unknown) | |
| Children: | William de BORTHWICK (c. 1355-1450) | |
| Thomas BORTHWICK ( - ) | ||
| Name: | Thomas de BORTHWICK | |
| Sex: | Male | |
| Father: | Thomas de BORTHWICK (c. 1290-1357) | |
| Mother: | - | |
| Birth | c. 1315 | |
| Death | 1360 (age 44-45) | Catcume, Midlothian |
| Name: | William de BORTHWICK | |
| Sex: | Male | |
| Spouse: | Rachel de la HAYA (c. 1370-1435) | |
| Birth | c. 1355 | Borthwick, Midlothian |
| Occupation | 1st feudal Baron of Borthwick | |
| Death | 7 Mar 1450 (age 94-95) | |
| Name: | Thomas BORTHWICK | |
| Sex: | Male | |