Amatellus St. Quintin who, in the reign of Richard I [1189-1199], was entitled Baron St. Quintin, and was s. by his son, Herbert St. Quintin. [Sir Bernard Burke, Dormant, Abeyant, Forfeited, and Extinct Peerages, Burke's Peerage, Ltd., London, 1883, p. 469, St. Quintin, Baron St. Quintin]
Amatellus St. Quintin, feudal baron of St. Quintin, who m. anno 1139, Catharine, daughter of Sir John Freshmarsh, knt., and had two sons, Sir John and Sir Herbert. [John Burke & John Bernard Burke, Extinct and Dormant Baronetcies of England, Ireland, and Scotland, Second Edition, Scott, Webster, & Geary, London, 1841, p. 463, St. Quintin, of Harpham]