The diocese was founded in 1914 under
George V from the
Diocese of Saint Albans (of which it had been a part since 1877). The present diocese covers the County of
Essex including those parts of Essex added to
Greater London on 1 April 1965 and Ballingdon-with-Brundon, transferred to
Suffolk and Great/Little Chishill and Heydon, transferred to
Cambridgeshire in 1894. The
see is in the city of
Chelmsford where the seat is located at the
Cathedral Church of Saint Mary, Saint Peter and Saint Cedd which was elevated to cathedral status in 1914. The bishop's residence is Bishopscourt,
Margaretting. ==List of bishops==