Dugdale, William, Sir. Priory of Llangkywan, near Gresmond, in Monmouthshire in Dugdale's Monasticon Volume 6 Part 2 Vol. 6: 1015-16

[Dugdale, William, Sir. Priory of Llangkywan, near Gresmond, in Monmouthshire in Dugdale's Monasticon Vol. 6 Part 2 Dugdale, William, Sir Vol. 6: 1015-16.]