William was born about 1410 in Rosslyn castle, Roslin, Midlothian, Scotland, the son of Henry II Sinclair and Egidia Douglas.
He died in BET 11 NOV 1479 AND 15 MAY 1480 in Ravenscraig castle, Kirkcaldy, Fifeshire, Scotland.
He had four marriages/partners. His first wife was Elizabeth Douglas, who he married on 12 AUG 1432. The place has not been found. Their two known children were Catherine (?-?) and William (?-?).
His second wife was Marjory Sutherland, who he married on BEF 15 NOV 1456. The place has not been found. Their thirteen known children were Katherine (1440-1479), Robert (1447->1506), Mary (c1450-?), Susan (c1451-?), sir Oliver (1452->1509), Arthur (c1452-?), George (c1453-?), Alexander (c1454->1508), Elizabeth (c1455-1498), Marjory (1455-1480), Mariota (c1455-?), Eleanor (1457-1518) and William (1459-1513).
His third wife was Janet Yeman. They were married, but the date and place have not been found. They had no known children.
His fourth partner is not knownThey were never married. Their two known children were John (?-?) and sir David (?-<1507).
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William Sinclair |
Henry II Sinclair |
Henry I Sinclair |
William Sinclair |
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Isabel Strathearn |
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sir John de Halyburton |
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Margaret Cameron |
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Egidia Douglas |
sir William Douglas |
Archibald Douglas |
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Egidia Stewart |
Walter Stewart |
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Margaret Berkeley |
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| Event | Date | Details | Source | Multimedia | Notes | ||
|---|---|---|---|---|---|---|---|
| Birth | ABT 1410 |
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| Death | BET 11 NOV 1479 AND 15 MAY 1480 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | FROM 1418 TO 1470 | earl of Orkney 3° | ||||
| Nobility Title | FROM 1422 TO 1484 | baron of Roslin 5° | ||||
| Nobility Title | FROM 1449 | lord St. Clair 1° | ||||
| Nobility Title | FROM 1455 TO 1476 | earl of Caithness 1° |