Constantine Basileos von Schleswig-Holstein-Sonderburg-Glücksburg was born 2 August 1868 in Athens to George I of Greece (1845-1913) and Olga Constantinovna of Russia (1851-1926) and died 11 January 1923 in Salerno of unspecified causes. He married Sophie von Preußen (1870-1932) 27 October 1889 in Athens. Notable ancestors include Charlemagne (747-814), Alfred the Great (849-899), Henry II of England (1133-1189), William I of England (1027-1087), Hugh Capet (c940-996), Gustav I of Sweden (1496-1560), Robert I of Scotland (1274-1329), Willem van Oranje (1533-1584), Rurik (c832-879), Johan Willem Friso van Nassau-Dietz (1687-1711). Ancestors are from Denmark, Russia, Germany, Poland, the United Kingdom, France, Sweden, Scotland, England, Belgium, Spain, the Czech Republic, Hungary, the Netherlands, Belarus, Ukraine, Geneva, Austria, Switzerland, Lithuania, Latvia, Bohemia, Italy, Portugal, Slovakia, Slovenia, Israel, Ireland, Turkey, the Byzantine Empire.


Offspring of Constantine I of Greece and Sophie von Preußen (1870-1932)
Name Birth Death Joined with
George II of Greece (1890-1947) 20 July 1890 Tatoi 1 April 1947 Athens Elisabeth of Romania (1894-1956)

Alexander of Greece (1893-1920) 1 August 1893 Tatoi, Greece 25 October 1920 Athens, Greece Aspasia Manos (1896-1972)

Helena of Greece (1896-1982) 3 May 1896 Athens 28 November 1982 Lausanne Carol II of Romania (1893-1953)

Paul of Greece (1901-1964) 14 December 1901 Athens 6 March 1964 Athens Friederike von Hannover (1917-1981)

Irene of Greece (1904-1974)
Catharina of Greece (1913-2007)

Common ancestors of Constantine I of Greece (1868-1923) and Sophie von Preußen (1870-1932)

  1. Catherine II of Russia (1729-1796)
  2. Friederike Luise von Hessen-Darmstadt (1751-1805)
  3. Friederike von Hessen-Darmstadt (1751-1805)
  4. Friederike von Hessen-Darmstadt (1752-1782)
  5. Friedrich Wilhelm II. von Preußen (1744-1797)
  6. Friedrich Wilhelm III. von Preußen (1770-1840)
  7. Karl II. von Mecklenburg-Strelitz (1741-1816)
  8. Luise von Mecklenburg-Strelitz (1776-1810)
  9. Paul I of Russia (1754-1801)
  10. Sophia Dorothea von Württemberg (1759-1828)

Footnotes (including sources)

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