Ealdred had returned to England by 1055, and brought with him a copy of the "Pontificale Romano-Germanicum", a set of liturgies. An extant copy of this work, currently manuscript Cotton Vitellus E xii, has been identified as a copy owned by Ealdred. It appears likely that the "Rule of Chrodegang", a continental set of ordinances for the communal life of secular canons, was introduced into England by Ealdred sometime before 1059. Probably he brought it back from Germany, possibly in concert with Harold.