Aethelweardus, Fabius. [Letter to Matilda, abbess of Essen, undated] in Chronicon AEthelweardi/ The Chronicle of AEthelweard 1-4

[Letter from Fabius Aethelweardus to Matilda, abbess of Essen]
The prologue to the first book of Aethelweard's Chronicle in which he gives greetings and a brief genealogy of their family.
Online at Epistolae (See also Bibliographia record).