Question: Princess Maria-Olympia is the only daughter of the eldest son and second child of Constantine II, who was the last king of Greece from 1964 until when?
Sentence (from "Pavlos, Crown Prince of Greece"): Pavlos, Crown Prince of Greece, {'1': ", '2': ", '3': 'RE', '4': "} (Greek: Παύλος ; born 20 May 1967) is the eldest son and second child of Constantine II, the last King of Greece from 1964 to 1973 and his wife, Anne-Marie of Denmark.
Relevant evidence: Yes