From the 14th century Ampthill Park was a royal lodge and hunting park. In the 15th century it was occupied by Sir John Cornwall, who had married the king's sister, Elizabeth of Lancaster, Duchess of Exeter. Sir John amassed a large fortune and constructed Ampthill castle, a fortified house. After his death Ampthill Park passed to Edmund Grey, 1st Earl of Kent before becoming royal property again. Henry VIII used it for hunting and to hold Katherine of Aragon during the annulment of their marriage. By 1600 the castle was ruinous and in 1661 the park was given by Charles II to John Ashburnham, a Royalist supporter. 
The present house was built from 1687-1689 by architect Robert Grumbold for the Ossory family who held the estate under lease.In the late 1700s the house was remodelled by Sir William Chambers and the grounds landscaped by Capability Brown.
On the death of Lord Upper Ossory in 1818, Ampthill Park became the seat of Lord Holland in whose time Holland House in Kensington, London, became famous as a gathering place for intellectuals. Notable 20th-century architect Sir Albert Richardson lived in Ampthill from 1919 until his death in 1964.
During World War II the estate was occupied by the army. There was a farming camp near Ampthill, where volunteers recovered sugarbeet and were accommodated in tents in the grounds. After the war it was sold to Bovril Limited, becoming a Cheshire Home for the Disabled in 1955. In 1979, the mansion was rescued from dereliction and divided into four large homes. It is a grade II* listed building. The park is listed grade II.
- "Complete list of lost English country houses". Lh.matthewbeckett.com. Archived from the original on 22 July 2011. Retrieved 10 April 2013.
- "Ampthill Park". Ampthill Town Council. Archived from the original on 2015-03-09. Retrieved 24 April 2015.
- "Two parts of a magnificent Bedfordshire country house for sale". Country Life. 1 April 2010. Retrieved 8 November 2014.
- Historic England. "PARK HOUSE (CHESHIRE HOME FOR THE DISABLED), AMPTHILL PARK (1137595)". National Heritage List for England. Retrieved 24 April 2015.
- Historic England. "AMPTHILL PARK (1000378)". National Heritage List for England. Retrieved 24 April 2015.
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