His paternal grandparents are King Constantine II of Greece and Anne - Marie of Denmark .
He is the younger brother of Princess Maria - Olympia and Prince Constantine Alexios , and older brother of Prince Odysseas - Kimon , and Prince Aristidis - Stavros .
brother 's paternal grandparents are Prince   II of Greece and Anne - Marie of Denmark .
He is the younger brother of Princess Maria - Olympia and Prince Constantine Alexios , and older brother of Prince Odysseas - Kimon , and Prince Aristidis - Stavros .