William de Montacute, 2nd Earl of Salisbury, m. 1st, Joane, dau. of Edmund Plantagenet, Earl of Kent, from whom he was divorced on account of the lady's pre-contract with Sir Thomas Holland. [Sir Bernard Burke, Dormant and Extinct Peerages, Burke's Peerage, Ltd., London,1883, p. 371, Montacute, Barons Montacute, Earls of Salisbury]