ASDC GM

Because Prince Philip and Queen Elizabeth II married just two years after World War II ended, it was not acceptable for Philip's German family members (including his sisters) to be invited to the wedding.

Prince Philip and Queen Elizabeth are related. They have the same great-great-grandparents, Queen Victoria and Prince Albert, who were first cousins. It was a common practice for the Royals back then to be cousins since marriages were done to ally with foreign powers