Page "Aust" Paragraph 16

Between 1088 and 1092 Turstin appears to have been banished from England, possibly due to support given by him to the claim of Robert Curthose, the eldest son of William I, to the crown over William Rufus.

Turstin's barony, almost intact and including Aust, was granted to Wynebald de Ballon ( d. 1126 ), a soldier from Maine, who was close to William Rufus.

Wynebald also had a holding at Caerleon, above which, also on the River Usk, his brother Hamelin de Ballon founded the extensive marcher lordship of Abergavenny, and built the castle there.

Still further up the Usk at Brecon was the lordship of Bernard de Newmarch ( d. circa 1125 ), and circumstantial evidence suggests that his son from an early marriage became the husband of Mabilia de Ballon, the sole heiress of Wynebald following the early death of his son.