 They were separated during the latter part of the war, but in 1946 she moved permanently to Paris, and their relationship, though never public, lasted until her death in 1973.This did not prevent him becoming involved with many other women.In 1969, without formally ending his affair with Mitford—he was with her when she died—he married Helen-Violette de Talleyrand-Périgord (1915–2003), duchesse de Sagan, the daughter of the seventh duc de Talleyrand and his wife Anna Gould.