"POLE : Barons De La Pole" in John Burke, A general and heraldic dictionary of the peerages of England, Ireland, and Scotland, extinct, dormant, and in abeyance (1831), pp. 435–438
Virgoe 1980, p. 263. Virgoe, R. (1980). "The murder of James Andrew: Suffolk faction in the 1430s". Proceedings of the Suffolk Institute OfArchaeology and History. 34: 263–268. OCLC679927444.
Virgoe 1980, p. 264. Virgoe, R. (1980). "The murder of James Andrew: Suffolk faction in the 1430s". Proceedings of the Suffolk Institute OfArchaeology and History. 34: 263–268. OCLC679927444.