♀ Mary

• William George_I of_the_Hellenes Oldenburg (1845)
• Olga Constantinovna (1851)

Marriage 1900-01-01

Marriage 1922-01-01

• Andrew of_Greece (1882)
• Alexandra of_Greece (1870)
• Nicholas of_Greece (1872)
• Constantine_I Oldenburg (1868)
• Christopher Oldenburg (1888)
• George Oldenburg (1869)
• Olga