Lewes Priory of St Pancras' first church, thought to have been remodelled in stone by William de Warenne and his wife Gundrada, form an earlier existing Saxon minster dedicated to St Pancras. Once the new priory great church was built, it may have served as the infirmary chapel. The chancel decoration seen here is takes inspiration from paintings in the Cluniac Chapelle des Moines in Berzé la Ville, Burgundy, France. It shows Christ in Majesty with Saints Peter and Paul, with elders and saints below. On the north wall William and Gundrada are shown kneeling to present, in dedication, this church, to young Saint Pancras holding a palm frond.