11th Baron of Roslin William Thomas Sinclair
1408 - 1482 (74 years)-
Name William Thomas Sinclair Title 11th Baron of Roslin Birth 1408 Caithness, Scotland 
Gender Male Death 29 Mar 1482 Fifeshire, Scotland Burial Fifeshire, Scotland Person ID I8584 footsteps | Campbell, Hayne, Bruce, Stewart, Lady Godiva, Charlamagne, Conqueor, Robert Capet II, GuyBuckman, DonCampbell, LucyHarrison, BettyOtt Last Modified 21 Apr 2025
Father Henry Sinclair, II, b. 24 May 1373, Orkney Islands, Scotland d. 1 Feb 1422, Midlothian, Scotland (Age 48 years) Relationship natural Mother Countess Sinclair Egidia Jill Douglas of Orkney, b. 1388, Dumfries-shire, Scotland d. 1438, Orkney Islands, Scotland (Age 50 years) Relationship natural Marriage 17 Feb 1404 Perthshire, England Family ID F891 Group Sheet | Family Chart
Family 1 Marriage Bef 15 Nov 1456 Scotland Children + 1. Marjory Sinclair Of Orkney, b. Abt 1445, Midlothian, Scotland d. 1508, Scotland (Age 63 years)Family ID F226 Group Sheet | Family Chart Last Modified 21 Apr 2025
Family 2 Marjory Sutherland, b. Abt 1436, Dunbeath, Caithness, Scotland d. Abt 1480 (Age 44 years) Marriage 15 Nov 1456 Children + 1. 2nd Lord of Sinclair William Sinclair, b. 1430, Caithness, Scotland d. 28 May 1480, Fifeshire, Scotland (Age 50 years) [Father: natural] [Mother: natural]+ 2. Lady Eleanor Sinclair, b. 19 Apr 1457, Fifeshire, Scotland d. 21 Mar 1518, Perthshire, England (Age 60 years) [Father: natural] [Mother: natural]+ 3. Oliver Sinclair of Roslin, b. 1460, Fifeshire, Scotland d. 1509, Caithness, Scotland (Age 49 years) [Father: natural] [Mother: natural]Family ID F10481 Group Sheet | Family Chart Last Modified 21 Apr 2025
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Notes - 1st Earl of Caithness (1455-1476), last Earl (Jarl) of Orkney (1434-1470 de facto, -1472 de jure), 2nd Lord Sinclair and 11th Baron of Roslin was a Norwegian and Scottish nobleman and the builder of Rosslyn Chapel, in Midlothian.
In 1436 was Admiral of Scotland when he conveyed Princess Margaret of Scotland to the Dauphin of France (Louis XI)
Earl of Orkney, invested by Eric, King of Norway
- 1st Earl of Caithness (1455-1476), last Earl (Jarl) of Orkney (1434-1470 de facto, -1472 de jure), 2nd Lord Sinclair and 11th Baron of Roslin was a Norwegian and Scottish nobleman and the builder of Rosslyn Chapel, in Midlothian.