Fanny had two children from her marriage to Edward - a son, musical composer Edward Francis Fitzwilliam and a daughter, actress and singer Kathleen Fitzwilliam.
Kathleen Mary Fitzwilliam (1826–1894) was the actress daughter of the noted actors Edward Fitzwilliam and Fanny Fitzwilliam.
Kathleen Turner | Kathleen Sebelius | Kathleen Blanco | Kathleen Battle | Earl Fitzwilliam | Fitzwilliam Museum | Kathleen Parker | Kathleen Willey | Kathleen Ferrier | Kathleen Edwards | Kathleen Beedles | Kathleen Antonelli | Fitzwilliam Virginal Book | Fitzwilliam College, Cambridge | William Fitzwilliam Owen | Kathleen Freeman | Kathleen Cavendish, Marchioness of Hartington | Kathleen Carley | Kathleen Byron | Kathleen Brennan | Fitzwilliam | William Wentworth-Fitzwilliam, 7th Earl Fitzwilliam | William Wentworth-FitzWilliam, 6th Earl FitzWilliam | William Wentworth-Fitzwilliam, 6th Earl Fitzwilliam | William Fitzwilliam, 4th Earl Fitzwilliam | William Fitzwilliam | Ralph Fitzwilliam | Kathleen Wynne | Kathleen Sullivan Alioto | Kathleen Robertson |