[6][4] In 1852–3 William Butterfield reworked the west end, replaced the east window, and removed most of the fittings and monuments that were newer than c.1400.

[7] At the same time the internal stairs giving access to the tower were replaced by an external stair-turret at the rear, in the north-east angle of the crossing.

Ponting (the diocesan architect) and Detmar Blow carried out structural repairs which included rebuilding the piers of the crossing and the aisle.

Early antiquaries – notably Canon Jackson in 1867[12] – considered the building to be the priory church, interpreting the signs of structures formerly attached to its north side as including a cloister.

The former vicarage to the north-east (now demolished) is thought to have been part of the monastic buildings,[14] and the absence of graves to the north of the church may be significant.

[15] The Royal Commission on the Historical Monuments of England published in 1987 a study of the relationship between the priory and the present church.

[16] They consulted, amongst other sources, papers in the Longleat archive concerning the acquisition of the abbey's land by Edward Seymour and his agents' reports on demolition of the buildings.

In Brittany and Cornwall, a cult of St Melor (French: Méloir or Mélar) developed in the 10th century.

[19] Butterfield designed new furnishings, including the pulpit; most of these survive, but his decoration of the east wall in marble and polychrome tiles is hidden behind a curtain,[20] and has been covered since at least 1979.

[21] The organ with its elaborate case came from the redundant St Edmund's Church, Salisbury in 1983,[19] replacing an 1888 instrument which was in disrepair by 1979.

[25] Since 1630, the right to appoint the incumbent – at first a curate and from 1868 a vicar – has been held by St George's Chapel, Windsor.

[1] The town's war memorial, a tall Latin cross on a large four-stepped pedestal, stands in the churchyard.