Helen Percy, Duchess of Northumberland

Helen Percy, Duchess of Northumberland, (13 December 1886 – 13 June 1965), was born as Helen Magdalan Gordon-Lennox, the daughter of Charles Gordon-Lennox, Earl of March and Kinrara (later the 7th Duke of Richmond).

She was married on 18 October 1911 to Earl Percy, who succeeded his father as 8th Duke of Northumberland in 1918, whereupon she became known as the Duchess of Northumberland. The couple had six children:

She was Mistress of the Robes to Queen Elizabeth, the Queen Mother, from 1937 to 1964 and was appointed a Dame Grand Cross of the Royal Victorian Order in 1938.