William Sinclair, 1st Earl of Caithness was at that time the Norse Earl of Orkney, who was made in 1473 to exchange his Orkney fief to castle Ravenscraig, so the Scottish throne took the earl's rights in the islands too.
William Sinclair, 1st Earl of Caithness, was at that time the Norse Earl of Orkney. In 1472 he was made to exchange his Orkney fief to Castle Ravenscraig, so the Scottish throne took the earl's rights in the islands too.