Hilda Madeline Gordon-Lennox, Duchess of Richmond DBE FRHS JP (née Brassey; 16 June 1872 – 29 December 1971) was the daughter of Henry Brassey and Anna Harriet Stevenson (died 15 July 1898), and granddaughter of the railway pioneer Thomas Brassey. She was known as Lady Settrington from 1893 to 1903, and as Countess of March from 1903 to 1928, when her husband inherited the dukedom. Lady Settrington joined her husband in South Africa in early 1900, when he served there during the Second Boer War. She died in 1971, aged 99.