In a surviving letter (written in 704 or 705), Waldhere, Bishop of London, tells Berhtwald, Archbishop of Canterbury, that Coenred had invited him to a council to be held "about the reconciliation of Ælfthryth".
Nunha carta que sobrevive (escrita en 704 ou 705), Waldhere, bispo de Londres, dille a Berhtwald, arcebispo de Canterbury, que Coenred o convidara a un concilio que levará a cabo sobre «a reconciliación de Elfthryth».