The St. John Genealogy Project
Origin and Ancestry DNA Database & Electronic Archive
1130 - 1214 (84 years)
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Has 99 ancestors and 8 descendants in this family tree.| Name | William Sinclair | |
| Suffix | 4th Baron of Rosslyn | |
| Birth | abt. 1130 | |
| Gender | Male | |
| Death | abt. 1214 | |
| Age at Death | 84 years | |
| Person ID | I105555618 | St. John Origin and Ancestry DNA Database |
| Last Modified | 1 Apr 2021 | |
| Father |  Henry Sinclair, 3rd Baron of Rosslyn, b. abt. 1100 d. abt. 1180 (Age 80 years) | |
| Relationship | Birth | |
| Mother | Margaret Grathenay, b. abt. 1105 | |
| Relationship | Birth | |
| Family ID | F400256 | Group Sheet | Family Chart |
| Family | Agnes Dunbar, b. abt. 1135 | |||
| Children |
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| Family ID | F400257 | Group Sheet | Family Chart | ||
| Last Modified | 1 Apr 2021 | |||
 Pedigree |
| Reference | Suzanne St. John. "William Sinclair, 4th Baron of Rosslyn". The St. John Genealogy Project. https://www.stjohngenealogy.com/getperson.php?personID=I105555618&tree=OSA0001 (accessed May 21, 2025). |
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