[6] Juliana Butvilleyne, the daughter and co-heiress of Sir Robert Butvilleyne of Cottesbrooke, married Robert Duke of Brompton in Suffolk, whose eventual heir was the Kempe family of Gissing in Norfolk (Kempe baronets),[7] who quartered the arms of Butvilleyne (Argent, three crescents gules)[8] The estate with Cottesbrooke Hall, built 1702, was bought by the Langham baronets, a family of London turkey merchants, in 1637, previously belonging to the Saunders family.

The tower has two-light Y-traced bell-openings supported by circular mullions, well preserved shafting on the interior windows with capitals, both carved and plain, and also a number of small exterior head-stops.

The two east windows, glazed with coloured panes, are believed to be Georgian in origin, being referred to as 'recent' additions in documents dating from 1849.

The nave roof has a ceiling, the painted imitation-plasterwork in the covings being of interest, believed to be 18th century work.

During the last restoration, the plaster ceilings in the chancel and the remaining south transept were removed, exposing roof timbers from the 15th century.

The church has one of few examples of a three-tier Georgian pulpit in the county and country, and is fitted with fine box pews.

The church plate, consisting of a Cup and Paten from 1635 and also two Flagons and a Breadholder of 1665, is held at Cottesbrooke Hall.

A number of large monuments include John Rede, d.1604 in the south chapel is of alabaster stone with a recumbent effigy in marble on a partially rolled mat.