Rieul, Bishop of Reims, was bishop of that town from 673 to around 689. He was a supporter of Ebroin.
Ebroin's supporters, which included Rieul, Praejectus, Agilbert of Paris, and Ouen of Rouen, held a council of bishops that sat in judgment on Leger, at Marly, near Paris. Praejectus’ murderer may have been a supporter of Leger, who was later murdered on October 2, 679.[1][2]