Guibert de Gembloux was a tenth-century nobleman and Benedictine monk born in Austrasia. After serving in various military campaigns, he transitioned to a religious life as a hermit on lands inherited from his father. In 936, he established the fortified Gembloux Abbey, an institution that eventually gained imperial recognition from Otto I. Following his time at the monastery of Gorze, he returned to Gembloux to defend the abbey's interests and implement the Rule of Saint Benedict.