♂ Nicholas of_Greece

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

Marriage 1902-01-01

• Marina of_Greece (1906)
• Child_2
• Child_3
• Olga
• Elizabeth

• Andrew of_Greece (1882)
• Alexandra of_Greece (1870)
• Constantine_I Oldenburg (1868)
• Christopher Oldenburg (1888)
• George Oldenburg (1869)
• Olga
• Mary (1876)