The wide variety of activities involved in the management of the diocese is well illustrated in this collection of over 130 official acts (and references to lost acts) issued by the six archbishops of York between 1070 and 1154. The documents illustrate details of their dealings with the religious houses and the parish clergy: the confirmation of foundations and endowments, the appropriation of parish churches, the beginning of the process of the ordination of vicarages, and the settlement of land disputes. The acts of this period also demonstrate the attempts of the archbishops to consolidate and extend their jurisdiction as northern metropolitan.