Earl of Orkney William Sinclair and Lady Elizabeth, of Douglas Family
m. 1427-
Male
Earl of Orkney William Sinclair
Birth 1395 , Caithness, Scotland, United Kingdom 
Death Mar 1482 Burial Marriage 1427 [1] Father Henry Sinclair | F2028 Group Sheet Mother Jean Haliburton | F2028 Group Sheet
Female
Lady Elizabeth, of Douglas
Birth 1400 Douglas, Lanark, Scotland, United Kingdom Death 1451 Burial Father Earl of Douglas Archibald Tyneman | F2030 Group Sheet Mother Margaret Stuart | F2030 Group Sheet
Male
+ William Sinclair
Birth 1436 Roslin, Caithness, Scotland, United Kingdom Death Yes, date unknown Burial Spouse Marjory Sutherland | F2026 Marriage 1456 Ravenscraig, Fife, Scotland, United Kingdom
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Sources - [S238] The Church of Jesus Christ of Latter-day Saints, FamilySearch - Ancestral File - LDS, (Created by Family Search Internet Genealogy Service, 50 East North Temple Street, Salt Lake City, UT 84150
http://www.familysearch.org/eng/search), Film #1903725 (Reliability: 3).
- [S238] The Church of Jesus Christ of Latter-day Saints, FamilySearch - Ancestral File - LDS, (Created by Family Search Internet Genealogy Service, 50 East North Temple Street, Salt Lake City, UT 84150
http://www.familysearch.org/eng/search), Film #1903725 (Reliability: 3).