In the 1940s, Kathleen Kennedy (called 'Kit' or 'Kick' - I cannot hear it properly) married the Marquis of Huntington,. They had wanted to marry five years previously, but the Kennedys, particularly Rose Kennedy, were implacably against it because of religion. Apparently Rose never changed her mind. Five weeks after the marriage, Kit was widowed and had not become pregnant. So that particular aspect of religious belief denied her five years of happiness.
(I'm listening to 'The Mitford Girls' by Mary S Lovell - an excellent book.)