[1] Since the 16th century it has been the estate church of the Brudenell family, who bought Deene Park in 1514.

In 1869 the widow of James Brudenell, 7th Earl of Cardigan commissioned T. H. Wyatt to rebuild much of the church.

The octagonal font and the pink marble pulpit also date from the 19th century.

The monument to Sir Robert Brudenell, who died in 1531, and his two wives, consists of three recumbent alabaster effigies on a sarcophagus.

In the west wall of the transept is a memorial to Anne, Duchess of Richmond, who died in 1722.

The memorial to James Brudenell, 7th Earl of Cardigan, who died in 1868, and his wife, was designed by J. E. Boehm.

This consists of recumbent effigies on a sarcophagus, with bronze sea horses at the bottom corners.

[2] In the churchyard are four items that have been designated Grade II listed buildings.

[3] There is a row of chest tombs of the Yorke family dating from the late 18th to the 19th century.