 1060, died 5 March 1105/6, was an early Norman Baron and the first Baron Abergavenny and Lord of Over Gwent and Abergavenny; he also served William Rufus.Hamelin is traditionally made son of a Drogo (or Dru) de Ballon, lord of Ballon, today a commune in the department of Sarthe, Pays-de-la-Loire.It was located within the medieval County of Maine, invaded and conquered by Duke William of Normandy in the early 1060s, just before his invasion of England.