Cathedral Church of the Holy and Undivided Trinity

Ely Cathedral, formally the Cathedral Church of the Holy and Undivided Trinity, is an Anglican cathedral in the city of Ely, Cambridgeshire, England.

The cathedral can trace its origin to the abbey founded in Ely in 672 by St Æthelthryth. 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.