Dugdale, William, Sir. Priory of St. Thomas the Martyr at Dublin in Dugdale's Monasticon Volume 6 Part 2 Vol. 6: 1140-41

[Dugdale, William, Sir. Priory of St. Thomas the Martyr at Dublin in Dugdale's Monasticon Vol. 6 Part 2 Dugdale, William, Sir Vol. 6: 1140-41.]