Quartered arms of Sir Thomas de Montacute, 4th Earl of Salisbury, KG *FOSTER, Joseph, Some Feudal Coats of Arms from Heraldic Rolls 1298-1418, London: James Parker & Co., 1902. "Montagu, William" 2nd Earl of Salisbury 1344, K.G., a founder - bore, argent three lozenges conjoined in fess gules, quarterly with, gules, three armed legs flexed and conjoined argent garnished or, for the lordship of Man, in Surrey Roll; in the same Roll the quarters are also given in the revers order. THOMAS, 4th Earl of Salisbury, 1409, K.G. - bore, at the siege of Rouen 1418, argent three lozenges conjoined in fess gules "quarterly with", Monthermer, or an eagle displayed vert.