Osborne Beauclerk, 12th Duke of St Albans Duke of Saint Albans (1874-1964) (1874–1964) Parents Grace Bernal-Osborne William Beauclerk, 10th Duke of St Albans Children Siblings Moyra Beauclerk Charles Beauclerk, 11th Duke of St Albans Lady Alexandra Beauclerk Lady Katherine Beauclerk Lord William Beauclerk Sybil Beauclerk Lady Louise Beauclerk Partners Beatrix Beauclerk, Duchess of St Albans