Baring-Gould’s sources: Martyrologies of Ado, of Wyon, Menardus, those of Liége, Cologne, &c. Authorities:—Two ancient lives, one by Notker, B. of Liége (971-1007).

S. Hadelin was one of the disciples of S. Remacle, and when that Saint resigned his bishopric of Tongres, that he might retire from the world into the peaceful monastery of Staveloo, lately founded by S. Sigebert, King of Austrasia, he took with him the pious and humble Hadelin. On their way they rested on a bare plain, under a glaring sun, for their afternoon repose. S. Remacle remained awake, whilst his companion slept, and saw an angel bending over Hadelin, shading him with his wings from the burning heat. Remacle sent Hadelin into the neighbourhood of Dinant, on the Meuse, in 669, and finding a quiet retreat at Celles, on the Lesse, he dwelt there in a cave, and built a little chapel, on the site of which rose in after years a collegiate church. S. Hadelin is the patron of five churches in the diocese of Liége and Namur. His hermitage still exists, and from his time has never been without a pious successor. The body of the Saint was buried there, but was translated to Vise in the diocese of Liége, in 1338. His translation is commemorated on October 11th.