Merton College Chapel | Sheldonian Theatre University Church | Exeter College Chapel Merton College Chapel is built around a church dedicated to St. Mary and St. John dating from the late 1280s. The south transept was added in the 14th century, the north transept in 1425 and the tower in 1450. The nave was never built, resulting in the T-shape later adopted by other Oxford colleges. As well as its worship functions the chapel is in regular use as one of Oxford's most popular venues for small-scale classical concerts. Seating plan: Website: www.mertonchapel.org.uk