Tetworth shown within Cambridgeshire
|OS grid reference|
|Civil parish||Waresley cum Tetworth|
|Sovereign state||United Kingdom|
|Ambulance||East of England|
|EU Parliament||East of England|
Originally a hamlet in the parish of Everton, Bedfordshire, Tetworth has a complicated administrative history. The hamlet, which was considered a civil parish separate from Everton from the Inclosure Award of 1802, was in two distinct parts. The northern part was in Huntingdonshire, the southern partly an exclave of Huntingdonshire and partly of Bedfordshire. The Counties (Detached Parts) Act 1844 assigned the Bedfordshire part to Huntingdonshire, so that the entire southern section became an outlier of Huntingdonshire, separated from the rest of the county by a salient of Cambridgeshire. This situation remained until 1965, when two new counties of Cambridgeshire and Isle of Ely and Huntingdon and Peterborough were formed. At this time both county and parish boundaries were adjusted, Tetworth now being a single area in Huntingdon and Peterborough. In 1974 it was made part of the enlarged Cambridgeshire. The parish, formerly covering 2,235 acres (904 ha) was combined with Waresley on 1 April 2010, as Waresley cum Tetworth.
Listed as Tethewurda in the 12th century and Tetteworth or Tettesworthe in the 13th century, the name Tetworth is believed to mean "farmstead of a man named Tetta".
For ecclesiastical purposes both Everton and Tetworth were always part of the single Everton (or Everton-cum-Tetworth) parish, with the parish church situated in the detached part of the Tetworth civil parish. The church, dedicated to St Mary, was mentioned in the Domesday Book but was rebuilt in the 12th century, with the majority of that building still surviving today. A west tower was added in the 14th century, and the chancel was rebuilt in the 15th century.
Tetworth Hall stands on the edge of the Greensand Ridge overlooking the valley of the River Ivel at the southern end of the present parish. The house was built in 1710 for the MP John Pedley, and is a two-storey red brick mansion in the Queen Anne style to which it dates.
After the Pedley line died out in 1726, the house was bought by Edward Harley, 2nd Earl of Oxford before passing to the Lord Chancellor, Philip Yorke, 1st Earl of Hardwicke in 1740. In 1759 it was acquired by Stanhope Pedley, a relation of the original owners, who retained it until 1823 after which it passed to the Foley family.