Archdiocese of Westminster

Erected and made metropolitan in 1850, comprises the Counties of Middlesex, Hertfordshire, Essex, and London north of the Thames. Its suffragan sees are Northampton, Nottingham, Portsmouth, and Southwark. In 1911 the Province of Westminster, which included the whole of England and Wales, was divided into three; but certain privileges of pre-eminence over the new provinces were granted "for the safeguarding of unity, to the already historic Church of Westminster". +