Lanfranc, archbishop of Canterbury. [Letter to Margaret, queen of Scotland, 1070-89] in The letters of Lanfranc, Archbishop of Canterbury 160-63

[Letter from Lanfranc, Archbishop of Canterbury, to Margaret, Queen of Scotland]
Lanfranc responds reverentially to Margaret's letter asking him to be her spiritual father and to help her to establish an abbey.
Online at Epistolae (See also Bibliographia record).