Dugdale, William, Sir. College of Sibthorp, in Nottinghamshire in Dugdale's Monasticon Volume 6 Part 3 Vol. 6: 1369-1370

[Dugdale, William, Sir. College of Sibthorp, in Nottinghamshire, in Dugdale's Monasticon Vol. 6 Part 3 Dugdale, William, Sir Vol. 6: 1369-70.]