1. Marjory SUTHERLAND married William Sinclair, 3rd Earl of Orkney.
William and Marjory had many more children.
Lord William Sinclair, 3rd Earl of Orkney 3rd Earl Orkney, 1st Earl Caithness, son of Henry Sinclair, 2nd Earl of ORKNEY (c. 1375-1422) and Egidia DOUGLAS ( - ), was born before [Julian] February 1420. He had the title '3rd Earl Orkney, 1st Earl Caithness'. He had the title '3rd Earl Orkney, 1st Earl Caithness, 1st Lord Sinclair, Chancellor'. He died between 1476 and 1482. He died in 1480. He and Marjory SUTHERLAND had the following children:
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2. Sir Oliver Sinclair of Roslin was the son of Lord William Sinclair, 3rd Earl of Orkney 3rd Earl Orkney, 1st Earl Caithness and Marjory SUTHERLAND.
3. William Sinclair, 2nd Earl of CAITHNESS was the son of Lord William Sinclair, 3rd Earl of Orkney 3rd Earl Orkney, 1st Earl Caithness and Marjory SUTHERLAND.