The Chapel of St Nicholas is the chapel at the east end of the South Ambulatory of the Abbey. It does not feature on the Abbey’s audio guide, but is of interest for several of the individuals buried here. The only family entitled as of right to be buried in the Abbey is the family of the Duke of Northumberland. The entrance to the Northumberland vault is situated in this chapel. The vault holds 30 members of the family including the father of the founding donor of the Smithsonian Institution and the most recent arrival, the widow of the 10th Duke of Northumberland, who died in 2012. Other families well represented here are the Seymours and the Cecils. The first ‘resident’ to arrive was Philippa de Mohun, Duchess of York, who died in 1431.