Saint Agilus (or Agilo, Ayeul, Aisle, Ail, Aile; c. 580âÂÂ650) was a Frankish nobleman who became a Christian missionary in Bavaria and later was abbot of Rebais monastery near Paris, France. He was considered a saint, and his feast day is 30 August.
Saint Agilus or Ayeul was from a noble Frankish family, son of Chagnoald and descended from Pharamond and Frotmund. He was educated by Saint Columbanus in Luxeuil Abbey, France. He served as a missionary in Bavaria, Germany. According to tradition, Weltenburg Abbey in Bavaria was founded around 617 AD in the course of the Hiberno-Scottish mission by Agilus and Eustace of Luxeuil, two monks of Luxeuil Abbey. At the council of Clichy on 1 May 636 Agilus was made the first abbot of the Rebais monastery. He died in 650 AD. He was buried in the Saint-Jean church, which became the parish church of the town of Rebais. He was succeeded as abbot by his disciple Saint Filibert.
The hagiographer Alban Butler wrote,