 The earliest "Clann Ùisdein" seat connected with the barony of Sleat was Dunscaith Castle, off the Sound of Sleat.Ùisdean played not a small part in securing the surrender of the Earl of Ross, for which he was promised by the king 20 pounds worth of land, in 1476.The lordship of the isles was forfeited in 1493, and Ùisdean obtained a royal confirmation for his lands granted to him by the Earl of Ross in 1469.