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William Sinclair, 3rd Earl of Orkney, 1st Earl of Sinclair, 1st Lord Sinclair, Admiral of Scotland, High Chancellor of Scotland, was born circa 1407 to Henry Sinclair (c1375-1421) and Egidia Douglas (c1390-aft1438) and died circa 1480 of unspecified causes. He married Elizabeth Douglas (-c1451) . He married Marjory Sutherland (-bef1480) 15 November 1456 JL . Robert I of Scotland (1274-1329)/s.



Children



Offspring of William Sinclair and Elizabeth Douglas (-c1451)
Name Birth Death Joined with
Elizabeth Sinclair (-1508)
William Sinclair (-1487)
Katherine Sinclair
Susan Sinclair
Mariot Sinclair



Offspring of William Sinclair and Marjory Sutherland (-bef1480)
Name Birth Death Joined with
William Sinclair (-1513)
Catherine Sinclair
Eleanor Sinclair (c1457-1518) 1457 15 March 1518 John Stewart, 1st Earl of Atholl (c1440-1512)
Alexander Sinclair
George Sinclair
Robert Sinclair
Arthur Sinclair
Oliver Sinclair of Roslin (1475-1537)



Offspring of William Sinclair and unknown parent
Name Birth Death Joined with
David Sinclair








 




Footnotes (including sources)

‡ General
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