At the Convocation of Canterbury, the Catholic bishops comprising the Upper House of the Province of Canterbury agree to style Henry VIII supreme head of the English church and clergy "so far as the law of Christ allows".

The Convocations of Canterbury and York are the synodical assemblies of the bishops and clergy of each of the two provinces which comprise the Church of England. Their origins go back to the ecclesiastical reorganisation carried out under Archbishop Theodore of Canterbury (668–690) and the establishment of a separate northern province in 733. Until 1225 the synods were composed entirely of bishops, but during the thirteenth century more and more clergy were cited until by 1283 the membership was established as the bishops, deans, archdeacons and abbots of each province together with one proctor (representative) from each cathedral chapter and two proctors elected by the clergy of each diocese. The main purpose of the convocations was to take counsel for the well-being of the church and to approve canonical legislation, but in practice much time was spent in discussing the amount of tax to be paid to the Crown since the clergy were a separate estate of the realm and refused to be taxed in or through Parliament. Before the end of the nineteenth century, the Convocation of Canterbury, which was numerically very much larger, played the major role and the activity of the Convocation of York was often little more than giving formal approval to the decisions taken by the southern province.