Stage city Via Francigena France Cyclo/Pied: During this stage, the "romieux" are invited to stop at Rosnay l'Hôpital, whose church exceptionally has a crypt. In the 12th century, Thomas of Canterbury, a refugee in France, honoured Rosnay with his presence. He celebrated mass in the crypt in 1164, and it is said that a spring gushed out there that cured all who came there to quench their thirst. This spring still exists today under the name of "St. Thomas Well". A little further on, in Lesmont, the walker can take a small detour to access the remains of the old Roman road linking Reims to Langres, which would have been used by Sigeric in his time.