GRANDBOROUGH, a parish in the hundred of ASHENDON, county of BUCKINGHAM, 1 mile (S.) from Winslow, containing 286 inhabitants. The living is a discharged vicarage, in the archdeaconry of St..Alban's, and diocese of London, rated in the king's books at £8, and in the patronage of the Crown. The church, dedicated to St. John the Baptist, was formerly a chapel of ease to the vicarage of Winslow, and was pulled down in the civil war, by Cornelius Holland, the regicide, but was rebuilt after the Restoration.