 The bishopric's role was also complicated by continued conflict over primacy with the see of Canterbury.At the time of the English Reformation, York possessed three suffragan sees, Durham, Carlisle and Sodor and Man, to which during the brief space of Queen Mary I's reign (1553–1558) may be added the Diocese of Chester, founded by Henry VIII, but subsequently recognised by the Pope.Until the mid 1530s (and from 1553-1558) the bishops and archbishops were in communion with the pope in Rome.