Colmworth is a village and civil parish in the north of the English county of Bedfordshire. It is situated around 7 miles (11 km) north-east of Bedford. The parish includes the hamlet of Duck's Cross. Other nearby places are Little Staughton, Wilden, Renhold, Staploe, Bolnhurst and Ravensden.
The church is dedicated to St.Denis. It was built between 1426 and 1430 by Sir Gerard Braybrook. It is dedicated to the patron saint of France in honour of his French wife, Eleanor.
To the left of the altar is an alabaster and black marble monument to Sir William Dyer erected in 1641 by his wife, Catherine, Lady Dyer. It has the following inscription: