Augustine's father was <Unknown> and his mother was <Unknown>. He had a brother named Patrick. He was the older of the two children.1
General Notes
Augustine de Brethmete, elder brother to Patrick de Mobberley, gave the half of Mobberley to Patrick for his life. This Patrick Mobberley founded here a priory of regular canons of the Order of St. Augustine about 1206. John, son and heir of Augustine, lived in the time of King John. (Kin of Mellcene Thurman Smith, page 314)