Scotland / King William I

William the Lion (Mediaeval Gaelic: Uilliam mac Eanric; Modern Gaelic: Uilleam mac Eanraig), sometimes styled William I, also known by the nickname Garbh, "the Rough") reigned as King of the Scots from 1165 to 1214. He had the second-longest reign in Scottish history before the Act of Union with England in 1707. James VI (reigned 1567–1625) would have the longest.