Although the origin of Muno has faded into history, it is not unusual to find interesting traces of times long ago. Even its name is indicative of its Gallo-Roman origin.

Following the Verdun Treaty, Muno became the property of Count Herman of the Charlemagne line, who then donated it to the St.Vanne de Verdun Abbey in 1031. The Benedictines then decided to establish a priory in Muno, where its first traces appeared in 1188.
Long after, the Priory is passed along to the hands of the Liège Jesuits who occupied it from 1602 to 1773.

During the next period of almost two centuries, the Priory endured an unstable fate. Presumably, the buildings were frequently passed from one owner to another, leaving little trace of information on this period. But, it is certain that three generations of brewers occupied the Priory and that in the first half of the last century the Priory took on an agricultural vocation.