George I of Greece

Siblings
1. Frederick VIII, King of Denmark  (1843-1912) (69 years)

2. Alexandra, Queen of the United Kingdom  (1844-1925) (81 years)

3. Dagmar, Empress of Russia  (1847-1928) (81 years)

4. Thyra, Crown Princess of Hanover  (1853-1933) (80 years)

5. Valdemar, Prince of Denmark  (1858-1939) (81 years)

Grandchildren via Constantine I, King of Greece
1. George II, King of Greece  (1890-1947) (57 years)

2. Alexander, King of Greece  (1893-1920) (27 years)

3. Helen, Crown Princess of Romania  (1896-1982) (86 years)

4. Paul, King of Greece  (1901-64) (63 years)

5. Irene, Queen of Croatia  (1904-74) (70 years)

6. Katherine, Lady Brandram  (1913-2007) (94 years)

Grandchildren via George, Prince of Greece and Denmark
1. Peter, Prince of Greece and Denmark  (1908-80) (72 years)

2. Eugénie, Duchess of Castel Duino  (1910-89) (79 years)

Grandchildren via Alexandra, Grand Duchess of Russia
1. Maria Pavlovna, Princess Putyatin  (1890-1958) (68 years)

2. Dmitri Pavlovich, Grand Duke of Russia  (1891-1942) (51 years)

Grandchildren via Nicholas, Prince of Greece and Denmark
1. Olga, Princess of Yugoslavia  (1903-97) (94 years)

2. Elizabeth, Countess of Toerring-Jettenbach  (1904-55) (51 years)

3. Marina, Duchess of Kent  (1906-68) (62 years)

Grandchildren via Maria, Mrs. Ioannidis
1. Nina Georgievna, Princess Chavchavadze  (1901-74) (73 years)

2. Xenia Georgievna, Mrs. Jud  (1903-65) (62 years)

Grandchildren via Andrew, Prince of Greece and Denmark
1. Margarita, Princess of Hohenlohe-Langenburg  (1905-81) (76 years)

2. Theodora, Margravine of Baden  (1906-69) (63 years)

3. Cecilie, Hereditary Grand Duchess of Hesse and by Rhine  (1911-37) (26 years)

4. Sophie, Princess of Hanover  (1914-2001) (87 years)

5. Philip, Duke of Edinburgh  (1921-) (96 years)

Grandchildren via Christopher, Prince of Greece and Denmark
1. Michael, Prince of Greece and Denmark  (1939-) (78 years)