The Diocese of Southwark was created on 29 September 1850 and originally covered the
historic counties of
Surrey,
Berkshire,
Hampshire,
Kent,
Sussex, the
Isle of Wight, and the
Channel Islands. It lost territory on the creation of the
Diocese of Portsmouth on 19 May 1882. The diocese lost further territory on the creation of the
Diocese of Arundel & Brighton on 28 May 1965. However, on the same day the diocese of Southwark was elevated to an archdiocese when the
ecclesiastical province of
Southwark was established; from 1850 the diocese had been part of the
Province of Westminster. The metropolitan archbishop of Southwark has jurisdiction over the bishops
of Arundel & Brighton,
of Plymouth, and
of Portsmouth. ==List of bishops and archbishops==