She was the daughter of cartoonist and writer George du Maurier and his wife Emma Wightwick, the elder sister to actor Gerald du Maurier, the aunt of novelists Angela and Daphne du Maurier and great-granddaughter of Royal mistress of Prince Frederick, Duke of York and Albany Mary Anne Clarke.
Sylvia Plath | Ray Davies | Robertson Davies | Peter Maxwell Davies | Andrew Davies | Marion Davies | David Davies | Norman Davies | Andrew Davies (writer) | Barry Davies | Alan Davies | Sylvia Earle | Siobhan Davies | John Rhys-Davies | Sylvia Townsend Warner | Sylvia Sidney | Sylvia Massy | Windsor Davies | W. H. Davies | Sylvia Ruuska | Sylvia Rhone | Sylvia Kristel | Sylvia Burka | Sylvia | Russell Davies | Peter Llewelyn Davies | Paul Davies | Mia Davies | Laurence Llewelyn-Bowen | Joseph E. Davies |
His paternal grandmother, Beatrix ("Trixie"), was the daughter of author George du Maurier and the sister of Gerald du Maurier (himself the father of Daphne du Maurier) and Sylvia Llewelyn Davies (whose children with Arthur Llewelyn Davies were adopted by J.M. Barrie); she had married Charlie Millar in the 1880s.
George du Maurier, author and cartoonist, father of Gerald du Maurier and Sylvia Llewelyn Davies