The oldest part of the palace remaining is the Early English chapel. The so-called Lollardís Tower, which retains evidence of its use as a prison, dates from 1440. There is a fine Tudor brick gatehouse built by John Morton in 1495, and the hall, built by William Juxon is dated 1663, and has a hammer-beam roof. The portion now inhabited by the archbishops was built in 1834 and fronts a spacious quadrangle. Among the portraits of the archbishops here are examples by Hans Holbein, Anthony van Dyck, William Hogarth and Sir Joshua Reynolds. There is a valuable library. The church of St Mary was rebuilt around 1850,though the ancient monuments preserved give it an appearance of antiquity. Amongst them are tombs of some of the archbishops, including Richard Bancroft, and of the gardeners and plantsmen John Tradescant and his son.