<nowiki>Mary Spencer-Churchill; Alexandra Cadogan; Alexandra Cadogan; Mary Spencer-Churchill (née Cadogan), Duchess of Marlborough; Alexandra Cadogan; Mary Spencer-Churchill (née Cadogan), Duchess of Marlborough; Alexandra Cadogan; Mary Spencer-Churchill (née Cadogan), Duchess of Marlborough; Μάιρη Σπένσερ-Τσώρτσιλ του Μάρλμπορο; Александра Кадоган; (1900-1961), Justice of the Peace; first wife of John Spencer-Churchill, 10th Duke of Marlborough; Alexandra Mary Hilda Spencer-Churchill, Duchess of Marlborough; Alexandra Mary Hilda Cadogan; Hon. Alexandra Mary Hilda Cadogan; Hon. Alexandra Cadogan; Alexandra Spencer-Churchill, Duchess of Marlborough; Alexandra Mary Hilda Spencer-Churchill, Duchess of Marlborough; Alexandra Mary Hilda Cadogan</nowiki>
Alexandra Cadogan
(1900-1961), Justice of the Peace; first wife of John Spencer-Churchill, 10th Duke of Marlborough