The oak screen, with its unusually wide division by columns and pendants, is dated 1651 and bears the initials OC (probably for Oriel College rather than Oliver Cromwell, who was head of state at the time and whose parliamentary soldiers had stripped the chapel). The partly restored late 14th-century east window is of two cinquefoiled lights with tracery in a two-centred head. In the north wall is a similar original window but with different tracery and a label. The lower roof or ceiling Link is 15th-century, of three bays with chamfered tie-beams, curved braces, purlins and rafters and a moulded and embattled wallplate, and hides the 14th-century high-pitched roof above which is accessible only by ladder. The plaster-of-Paris infill with painted blind crests between the original timbers, the electroliers and the stone altar date from the restoration by Sir Ninian Comper in 1926. Information taken from the Royal Commission on Historical Monuments, City of Oxford (1939) and a guide leaflet in the chapel.
