1723) on 10 July 1712. She was the eldest daughter of Sir John Webb, 3rd baronet, of Odstock, Wiltshire, by Barbara, daughter and coheiress of John Belasyse, 1st Baron Belasyse. Their only son John Radclyffe, titular 4th Earl of Derwentwater (1713–1731) succeeded. John is generally accepted to have died at the age of 19 after a cutting for the stone. In the mid-19th century, a woman claiming to be his great-granddaughter and referring to herself as the Countess of Derwentwater made claim upon the Derwentwater estates, but was eventually discredited. She claimed that John had not died in 1731 but had fled to Germany to avoid an attempt on his life by the Hanoverian government. They also had a daughter, Lady Mary Radclyffe (1714–31 January 1760), who married Robert James Petre, 8th Baron Petre; they had three daughters and one son Robert Petre, 9th Baron Petre. Lady Derwentwater and her children fled to Brussels in 1721, and she died there of smallpox in 1723. Legacy Radclyffe's death is recounted in two English traditional ballads: "Lord Derwentwater", collected by Francis James Child and published as Child Ballad 208 in English and Scottish Popular Ballads (1882-98). "Lord Allenwater", collected by Ralph Vaughan Williams in 1904 from the singing of Emily Stears. Radclyffe figures prominently in the historical novels Dorothy Forster by Walter Besant and Devil Water by Anya Seton. In October 2022, a bedsheet embroidered with human hair, by Radclyffe's wife, in his memory, is to be displayed at the Museum of London, which acquired it in 1934. The museum stated that the hair "could have come from her own head or that of the earl, or she could have intertwined a combination of the two". Notes External links Snakes of The Derwent Valley (Mysterious Britain & Ireland) 1689 births 1716 deaths History of Northumberland English Jacobites People of the Jacobite rising of 1715 Executions at the Tower of London English politicians convicted of crimes Earls of Derwentwater