St. Maches was a 6th-century princess and Pre-congregational saint of Cornwall and Devon. Maches was the sister of St. Cadog.[1][2]
Born a daughter of Saint Gwynllyw and his wife Gwladys, Maches lived as a hermit, and was murdered by thieves,[3] at Merthyr Maches (Llanfaches in the Kingdom of Gwent).[4] She was buried in the monastery at Caerwent, now the parish church of St. Stephen at Caerwent,[5][6] by Saint Tathan to whom the bandits had confessed the crime.