An old suggestion that the name comes from Le Tronchet, a French monastery that owned land in Norfolk, fall out of favour by the twenty-first century.

The origin of the first element has also occasioned debate, with a word related to Welsh trwyn ("nose, headland") being mooted.

St Botolph's also features a hammerbeam roof with carved angels, as well as medieval misericords under the seats in the chancel.

Another medieval survival is the rood screen depicting 11 disciples and St Paul (their faces were scratched out during the Reformation).

While at Corpus Christi College, Cambridge, Thexton had been the roommate of Christopher Marlowe, the famous, and infamous, Elizabethan playwright.