Winifred Thursby (1868-1913) (1868–1913) Parents James Legh Thursby Harriet Matilda Johnston Children Winifred Gisela Yvonne Castelthomond O'Brien-ffrench Conrad O'Brien-ffrench Alexis Evelyn Henry O'Brien-ffrench Rollo Adrien Vladimir Thursby Marie Altieri O'Brien-ffrench Siblings Hilda Thursby Ethelrida Thursby William Legh Thursby Partners Henry Albert de Vreque O'Brien-ffrench, 1st Marquess of Castel Thomond