The south wall is pierced by an arch, c. 1330, through to the chapel, first built as a monks’ chantry, and subsequently used for burials and then as a vestry. East of the arch is the upper arch of a doorway and the remains of a window, both 13th century. At the re-opening of the church after restoration in 1903 the Bishop of Carlisle suggested that the opening may have belonged to an Easter Sepulchre, housing a sculpture of the risen Christ. Supporting the west end of the arch is a shield of Lancaster, gripped by monks’ or masons’ hands.