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
Groby of Martinshaw Woods. The old quarry in the village centre is now an industrial estate - mostly owned by the company GE Sensing formerly Druck Ltd, which makes pressure transducers. Groby Quarry is located on the narrow lane which leads through to Newtown Linford, and is still used to quarry granite. Lawn Wood Quarry, on the A50, is now largely disused and is being filled in with landfill. Groby Pool, "reputedly the largest natural expanse of open water in Leicestershire" is a lake located opposite the quarry on Newtown Linford Lane. It is owned by Hanson quarries and managed by