as a separate benefice, in the later medieval period canons increasingly tended to be non-resident, paying a vicar to undertake divine service in their place. Kings and bishops came to regard prebends as useful sources of income for favoured servants and supporters, and it was not uncommon for a bishop or archbishop also to hold half a dozen or more collegiate prebends or deaneries. From the 13th century onwards, existing collegiate foundations (like monasteries) also attracted chantry endowments, usually a legacy in a will providing for masses to be sung for the repose of the souls of the testator and their families by the collegiate clergy or their vicars. The same impetus to establish endowed prayer also led to many new collegiate foundations in this later period; under which an existing parish church would be rebuilt to accommodate a new chantry college; commonly with the intention that the rectory of the parish should be appropriated to support the new foundation. A new organisational structure was developed for these bodies, by which endowment income was held collectively, and each canon received a fixed stipend conditional on being personally resident, such canons being termed fellows, or chaplains led by a warden or master. In this arrangement, only the office of warden constituted a separate benefice; appointment to the individual canonries being at the discretion of the chapter. Chantry colleges still maintained the daily divine office with the additional prime function of offering masses in intercession for departed members of the founder's family; but also typically served charitable or educational purposes, such as providing hospitals or schools. For founders, this presented the added advantage that masses for the repose of themselves and their families endowed in a chantry would be supported by a guaranteed congregation of grateful and virtuous recipients of charity, which conferred a perceived advantage in endowing such a chantry in a parish church over doing so in a monastery. Consequently, in the later medieval period, testators consistently tended to favour chantries linked to parochial charitable endowments. One particular development of the chantry college principle was the establishment in university cities of collegiate foundations in which the fellows were graduate academics and university teachers. Local parish churches were appropriated to these foundations, thereby initially acquiring collegiate status. However, this form of college developed radically in the later Middle Ages after the pattern of New College, Oxford, where for the first time