Æthelfrith was father to four ealdormen: Æthelstan Half-King (East Anglia), Ælfstan (Mercia), Æthelwald (Kent), and Eadric (Wessex).
[1] "In 903 it happened to Æthelfrith, dux, that all his deeds of title perished in the destruction of a fire.
Therefore impelled by such a necessity, the aforementioned dux asked King Edward, also Æthelred and Æthelflæd, who then held rulership and power over the Mercian people under the aforementioned king, also all the members of the witan, that they should permit him and give authorisation for the rewriting of replacement charters for him."
Among the charters reissued was one "concerning that land of ten hides, namely at Islington, which Coenwulf, the celebrated king of the Mercians, gave to his faithful comes, Beornnoth, to be free for himself and for his heirs in perpetuity after him".
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