Hatfield House is a country house set in a large park, the Great Park, on the eastern side of the town of Hatfield, Hertfordshire, England. The present Jacobean house was built in 1611 by Robert Cecil, First Earl of Salisbury and Chief Minister to King James I and has been the home of the Cecil family ever since. It is a prime example of Jacobean architecture and is currently the home of Robert Gascoyne-Cecil, 7th Marquess of Salisbury. The house is open to the public.