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
St. Francis Xavier Church and Newtown Manor House Historic District to replace an older structure that may have been burned during the Revolutionary War. It is a -story brick, five-bay brick house with a pair of interior chimneys at each gable end. The structure originally had a gambrel roof, which was raised and changed to its present shape in 1816. The house, which belongs to the parish, is currently unoccupied. St. Francis Xavier Church and Newtown Manor House Historic District St. Francis Xavier Church and Newtown Manor House Historic District is the first county designated historic district in Saint Mary's County, the "Mother County" of Maryland and is located in