St James's Park is a 23-hectare (57-acre) urban park in the City of Westminster, central London. A Royal Park, it is at the southernmost end of the St James's area, which was named after a once isolated medieval hospital dedicated to St James the Less, now the site of St James's Palace. The area was initially enclosed for a deer park near the Palace of Whitehall for King Henry VIII in the 1530s. It is the most easterly of a near-continuous chain of public parks that includes Green Park, Hyde Park, and Kensington Gardens.