MONGEWELL, a parish in the hundred of LANGTREE, county of OXFORD, 1 mile (S.) from Wallingford, containing 142 inhabitants. The living is a rectory, in the archdeaconry and diocese of Oxford, rated in the king's books at £8. 9. 4. Uvedale Price, Esq. was patron in 1792. The church, dedicated to St. John the Baptist, has some portions in the Norman style remaining.