The Diocese of Liverpool is a Church of England diocese based in Liverpool, covering Merseyside north of the River Mersey, part of West Lancashire, part of Wigan in Greater Manchester, Widnes and part of Warrington and in Cheshire (it was originally formed from the then West Derby hundred of the historic county of Lancashire). The cathedral is Liverpool Cathedral and the bishop is the Bishop of Liverpool. The diocese was formed on 9 April 1880 from part of the Diocese of Chester.