The Province of York is the administrative area under the jurisdiction of the Archbishop of York and consists of 14 dioceses. The medieval province of York included the dioceses of York, Durham and Carlisle within its borders. The archbishop's claim to possess metropolitan jurisdiction over the Scottish sees was acknowledged only the by the bishops of Whithorn (until 1355) and authority over the bishopric of the Isles (Sodor and Man) was similarly disputed in the early middle ages between the York primate and the Norwegian archbishop of Nidaros (Trondheim). In 1542 the diocese of Sodor and Man was included within the boundaries of the northern province by act of parliament. In the previous year, the bishopric of Chester had been established, uniting the archdeaconries of Richmond (see of York) and Chester (see of Coventry and Lichfield). For the space of a few months the new bishopric was assigned to the province of Canterbury. There were to be no further diocesan changes for three centuries.
In 1836 the bishopric of Ripon was formed (Ripon & Leeds from 1999), followed by further foundations: Manchester 1847, Liverpool 1880, Newcastle 1882, Wakefield 1888, Sheffield 1914, Bradford 1919 and Blackburn 1926. The bishopric of Southwell was a special case. In 1837 the archdeaconry of Nottingham, which until then had formed part of the York diocese, was transferred to the diocese of Lincoln and hence to the southern province. In 1884 the counties of Nottingham and Derby were joined to form the new bishopric of Southwell. The diocese of Derby was created in 1927, removing Derbyshire from Southwell's jurisdiction, and eight years later Southwell was transferred, or rather restored, to the northern province.