Overview
Gilles (Ægidius), was Count of Montaigu and Clermont, through his father Count Godefried of Montaigu, and Count of Duras, through his wife Juliane, daughter of Count Otto of Duras. Gilles was also Seigneur of Rochefort, Jodoigne and advocate of the abbey of Saint-Trond. He was thus an important noble in Lower Lotharingia.
From Wikipedia (CC BY-SA 4.0).