Ely Cathedral is an Anglican cathedral in the city of Ely in Cambridgeshire, England. The cathedral can trace its origin to an abbey founded in Ely in 672 by St Æthelthryth (also called Etheldreda). The earliest parts of the present building date to 1083, and it was granted cathedral status in 1109. Until the Reformation the cathedral was dedicated to St Etheldreda and St Peter, at which point it was refounded as the Cathedral Church of the Holy and Undivided Trinity of Ely. It is the cathedral of the Diocese of Ely and seat of the Bishop of Ely. Ely Cathedral was built in a monumental Romanesque style, with the galilee porch, lady chapel and choir later rebuilt in an exuberant Decorated Gothic. Its central octagonal tower and the West Tower give it a prominent position above the surrounding flat landscape. This photograph shows the cathedral's lady chapel.Photograph credit: David Iliff