Referenced in:

• st: 155 - Cambridge, Sidney Sussex College, Δ. 5. 15 (100), pt. ii 21 n. 71
• st: 366 - London, British Library, Cotton Tiberius A. xiii (‘Hemming’s Cartulary’) 3-4
• st: 412 - London, British Library, Harley 55, fols. 1-4 17 n. 59
• mss: 919 - [Rome], Città del Vaticano, Biblioteca Apostolica Vaticana, Reg. lat. 1671 20 n. 7