Groby owned by the Grey family whose estate included Bradgate Park. Sir John Grey of Groby married Elizabeth Woodville. After his death, in battle, she married Edward IV of England. Bradgate Park was the childhood home of Lady Jane Grey, who became Queen of England for nine days in 1553. The Grey family held the barony until it was forfeited in 1554. Thomas Grey, Lord Grey of Groby became MP for Leicester in 1641 and fought on the side of Parliament in the English Civil War. In 1649 Grey was the only aristocrat of the 59 signatories of the death warrant
Bradgate Park administered by the Bradgate Park and Swithland Wood Charitable Trust, with trustees nominated by Leicestershire County Council, Leicester City Council and the National Trust. With the consent of the Charity Commission, the charity has adopted the shorter working title of Bradgate Park Trust. The visible geology in Bradgate Park ranges from some of the oldest (Precambrian) rocks in England to the youngest (Quaternary). The rock outcrops were created in conditions varying from volcanos rising out of the ocean, to magma flowing deep underground and from tropical deserts to Ice sheets. Within the park the outcrops are widely distributed as hillside