St. John the Baptist
The hospital (Hôtel Dieu) that had flanked the cathedral was dedicated to the Baptist and it is possible that there had been an ancient baptistery on the site. In 1206 the cathedral received the famous relic of the Saint's head, retrieved from Constantinople. The relic may, at first, have been displayed in this chapel. The chapel of John Baptist was the seat of the confraternity of tanners who held their meetings there and gave a window.