Complex sentence: In 1197 Bishop Reginald's successor, Bishop Savaric FitzGeldewin, with the approval of Pope Celestine III, officially moved his seat to Glastonbury Abbey, and the title of Bishop of Bath and Glastonbury was used until the Glastonbury claim was abandoned in 1219.
Split into simpler sentences: In 1197 Bishop Reginald's successor, Bishop 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.