Dugdale, William, Sir. Abbey of Gre Stein, in Normandy in Dugdale's Monasticon Volume 6 Part 2 Vol 6: 1090-92

[Dugdale, William, Sir. Abbey of Gre Stein, in Normandy in Dugdale's Monasticon Vol. 6 Part 2 Dugdale, William, Sir Vol. 6: 1090-92.]