the chapel was licensed in 1352 and was built by august 1366, when pope urban v granted the master and fellows permission to celebrate mass in the college. in 1729-1730, sir nathaniel lloyd, the then college master, redecorated the chapel in what, despite subsequent enlargements, remains an intimate style, forming the smallest of the university's chapels. lloyd removed some of the more prominent graves to the ante-chapel, while digging a vault for his own burial, and decorated the interior walls with wainscoting and the ceiling with stucco representations of past masters' crests. the chapel was extended to the east by a few feet in 1864, during which the medieval piscina was rediscovered and rendered accessible by a small door in the wainscoting. the current chapel painting is maso da san friano's "salutation", depicting mary's visit to elizabeth, from the opening of the gospel of luke, which replaced an earlier painting by giacomo stella in 1957.