*William Sinclair (St. Clair) Lord of Roslin
born before 1265
died 1297

father:
*Henri de St. Clair (Sinclair) Baron Roslin
born before 1240
died 1270

mother:
*Margaret of Mar
born before 1245

siblings:
unknown

spouse:
*Matilda of Orkney
born before 1270

children:
*Henry Sinclair Lord of Roslin
died before 28 January 1335/36

biographical and/or anecdotal:

notes or source:
LDS
ancestry.com