"William Sinclair, Earl of Caithness" . . "Earl (Jarl) of Orkney" . "William_Sinclair,_1st_Earl_of_Caithness" . . . . . . . "William Sinclair, Earl of Orkney and 1st Earl of Caithness" . . "William Sinclair, 3rd Earl of Orkney and 1st Earl of Caithness" . . . . "William" . . "William Sinclair, 1st Lord Sinclair" . . "Earl of Orkney" . . "William Sinclair, 2nd Lord Sinclair" . . . . . . "Orkney" . . "William, 1st Earl of Caithness" . . . . . "1410" . "William Sinclair, 1st Earl of Caithness, 11th Baron of Roslin and 2nd Lord Sinclair" . . "William Sinclair, 11th Baron of Roslin" . . . . "William Sinclair" . . "William Sinclair, 1st Earl of Caithness" . . "William Sinclair, Earl of Orkney" . . "William Sinclair, 1st Earl of Caithness and 3rd Earl of Orkney" . "William Sinclair, Earl of Orkney and Caithness" . "William Sinclair, 11th Baron of Roslin, 3rd Earl of Orkney, 2nd Lord Sinclair and 1st Earl of Caithness" . "William Sinclair, 3rd Earl of Orkney, 1st Earl of Caithness, 11th Baron of Roslin and 2nd Lord Sinclair" . . "Baron of Roslin" . "Lord Sinclair" . . "William Sinclair, 1st Earl of Caithness" . . . . . "William Sinclair, 3rd Earl of Orkney & Caithness" . . . . "Earl of Caithness" . . . . . "William Sinclair, 1st Earl of Caithness, 2nd Lord Sinclair and 11th Baron of Roslin" .