Wells Cathedral is an Anglican cathedral in Wells, Somerset, England, dedicated to St Andrew the Apostle. It is the seat of the Bishop of Bath and Wells, whose cathedra it holds as mother church of the Diocese of Bath and Wells. Built as a Roman Catholic cathedral from around 1175 to replace an earlier church on the site since 705, it became an Anglican cathedral when King Henry VIII split from Rome. It is moderately sized for an English cathedral. Its broad west front and large central tower are dominant features. It has been called "unquestionably one of the most beautiful" and "most poetic" of English cathedrals.

The cathedral is thought to have been conceived and commenced in about 1175 by Reginald Fitz Jocelin, who died in 1191. Although it is clear from its size that from the outset, the church was planned to be the cathedral of the diocese, the seat of the bishop moved between Wells and the abbeys of Glastonbury and Bath, before settling at Wells. In 1197 Reginald's successor, Savaric FitzGeldewin, with the approval of Pope Celestine III, officially moved his seat to Glastonbury Abbey. The title of Bishop of Bath and Glastonbury was used until the Glastonbury claim was abandoned in 1219

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