In 1641, following the outbreak of civil war, king Charles I promised to give Canna to the Baronet of Sleat, since the Earl of Argyll's treason (as one of the king's main opponents) would make Canna forfeit; the king's subsequent defeat made this promise moot. In 1654, the war having ended, the Earl of Argyll leased Canna back to Clan Ranald. In the following year, Donald MacDonald, the son of the Clan Ranald leader, married the Baronet's daughter, Janet, quelling any potential dispute over the island.