Mount Brilliant was an 18th-century plantation located in northern Hanover County, Virginia, United States. History Mount Brilliant was purchased by John Henry in 1749. John Henry was the father of Patrick Henry and William Henry, both of whom resided at Mount Brilliant. After many years of ownership, the Henry family began referring to the property as "The Retreat." On 17 April 1985, the cemetery on the old Mount Brilliant property was marked with a historical marker due to the gravesite of John Henry. External links Information on the Cemetery Houses completed in the 18th century Houses in Hanover County, Virginia Plantations in Virginia