Referenced in:

• ed: 447 - London, British Library, Royal 1. D. ix no. 26 [writ]
• st: 447 - London, British Library, Royal 1. D. ix 168-71, 446-8 [writ]
• ed: 879 - Paris, Bibliothèque nationale de France, lat. 943 no. 63 [writ by Æthelric]