The Domesday Survey recorded two estates in Aldsworth. The larger, of 11 hides, was held in 1086 by Gloucester Abbey. The other estate, of two hides, was held in 1066 by Balki and in 1086 by Alweard, son of Regenbald. In 1133 Henry I granted this estate, and others formerly held by Regenbald, to Cirencester Abbey. Both abbeys held their estates until the Dissolution. During the medieval period Aldsworth was a chapel dependent on Bibury and was appropriated by Oseney Abbey in 1151 (VCH).
The medieval dedication in uncertain. Although Arnold-Forster listed St Peter’s as a medieval dedication, the VCH referred to ‘the parish church of St Bartholomew, named before 1784 but sometime called St Peter’s from 1745’.