Background
She was born in Athens as a younger sister to Constantine I of Greece, Prince George of Greece, Alexandra Georgievna of Greece and Prince Nicholas of Greece.
She was born in Athens as a younger sister to Constantine I of Greece, Prince George of Greece, Alexandra Georgievna of Greece and Prince Nicholas of Greece.
Maria (sometimes Marie) was an elder sister of Prince Andrew of Greece (father of Prince Philip, Duke of Edinburgh) and Prince Christopher of Greece as well as the short-lived Princess Olga of Greece.