Biography of Constantine I King Greece 1868-1923
Paternal Family Tree: Oldenburg
On 30 Mar 1863 [his father] George I King Greece (age 17) succeeded I King Greece.
On 15 Oct 1867 [his father] George I King Greece (age 21) and [his mother] Olga Constantinovna Holstein Gottorp Romanov Queen Consort Greece (age 16) were married. She by marriage Queen Consort Greece. He the son of King Christian IX of Denmark (age 49) and Queen Louise Hesse-Kassel of Denmark (age 50). He a great x 3 grandson of King George II of Great Britain and Ireland. She a great x 5 granddaughter of King George I of Great Britain and Ireland.
On 02 Aug 1868 Constantine I King Greece was born to George I King Greece (age 22) and Olga Constantinovna Holstein Gottorp Romanov Queen Consort Greece (age 16).
On 18 Feb 1878 a double Royal Wedding took place at Berlin. The brides were second-cousins.
Bernhard Saxe Meiningen III Duke Saxe Meiningen (age 26) and [his future sister-in-law] Charlotte Hohenzollern (age 17) were married. She the daughter of Frederick III King Prussia (age 46) and Victoria Empress Germany Queen Consort Prussia (age 37). He the son of Georg II Duke of Saxe Meiningen (age 51). She a granddaughter of Queen Victoria of the United Kingdom.
Frederick Augustus II Grand Duke of Oldenburg (age 25) and Elisabeth Anna Hohenzollern (age 21) were married. He a great x 5 grandson of King George I of Great Britain and Ireland. She a great x 5 granddaughter of King George I of Great Britain and Ireland.
The event was attended by King Leopold II of Belgium (age 42) and his wife Marie Henriette of Austria, and the Prince of Wales (age 36) and his brother Prince Arthur Windsor 1st Duke Connaught and Strathearn (age 27).
On 24 May 1888 [his future brother-in-law] Prince Henry Hohenzollern (age 25) and Irene Hesse Darmstadt (age 21) were married. She the daughter of Prince Louis Hesse Darmstadt IV Grand Duke (age 50) and Princess Alice Saxe Coburg Gotha. He the son of Frederick III King Prussia (age 56) and Victoria Empress Germany Queen Consort Prussia (age 47). They were first cousins. He a grandson of Queen Victoria of the United Kingdom. She a granddaughter of Queen Victoria of the United Kingdom.
On 27 Oct 1889 Constantine I King Greece (age 21) and Sophia Hohenzollern Queen Consort Greece (age 19) were married. She the daughter of Frederick III King Prussia and Victoria Empress Germany Queen Consort Prussia (age 48). He the son of George I King Greece (age 43) and Olga Constantinovna Holstein Gottorp Romanov Queen Consort Greece (age 38). They were half second cousin once removed. He a great x 4 grandson of King George II of Great Britain and Ireland. She a granddaughter of Queen Victoria of the United Kingdom.
On 20 Jul 1890 [his son] George II King Hellenes was born to Constantine I King Greece (age 21) and [his wife] Sophia Hohenzollern Queen Consort Greece (age 20). He a great grandson of Queen Victoria of the United Kingdom.
On 25 Jan 1893 Frederick Charles I King Finland (age 24) and [his sister-in-law] Margaret Hohenzollern (age 20) were married. She the daughter of Frederick III King Prussia and Victoria Empress Germany Queen Consort Prussia (age 52). He a great x 3 grandson of King George II of Great Britain and Ireland. She a granddaughter of Queen Victoria of the United Kingdom.
On 01 Aug 1893 [his son] Alexander I King Greece was born to Constantine I King Greece (age 24) and [his wife] Sophia Hohenzollern Queen Consort Greece (age 23). He a great grandson of Queen Victoria of the United Kingdom.
On 02 May 1896 [his daughter] Helen Glücksburg was born to Constantine I King Greece (age 27) and [his wife] Sophia Hohenzollern Queen Consort Greece (age 25). She a great granddaughter of Queen Victoria of the United Kingdom.
On 14 Dec 1901 [his son] Paul I King Greece was born to Constantine I King Greece (age 33) and [his wife] Sophia Hohenzollern Queen Consort Greece (age 31). He a great grandson of Queen Victoria of the United Kingdom.
On 13 Feb 1904 [his son] Princess Irene Glücksburg was born to Constantine I King Greece (age 35) and [his wife] Sophia Hohenzollern Queen Consort Greece (age 33). He a great grandson of Queen Victoria of the United Kingdom.
On 18 Mar 1913 [his father] George I King Greece (age 67) died. His son Constantine I King Greece (age 44) succeeded I King Greece. [his wife] Sophia Hohenzollern Queen Consort Greece (age 42) by marriage Queen Consort Greece.
On 04 May 1913 [his son] Katherine Glücksburg was born to Constantine I King Greece (age 44) and [his wife] Sophia Hohenzollern Queen Consort Greece (age 42). He a great grandson of Queen Victoria of the United Kingdom.
Apr 1914. Philip de László (age 44). Portrait of Constantine I King Greece (age 45).
On 11 Jun 1917 Constantine I King Greece (age 48) abdicated King Greece. [his son] Alexander I King Greece (age 23) succeeded I King Greece. Aspasia Manos Queen Consort Greece by marriage Queen Consort Greece.
On 01 Oct 1919 [his sister-in-law] Charlotte Hohenzollern (age 59) died.
On 27 Feb 1921 [his son] George II King Hellenes (age 30) and [his daughter-in-law] Elisabeth Hohenzollern Sigmaringen Queen Consort Greece Queen Consort Hellenes (age 26) were married at Bucharest. He the son of Constantine I King Greece (age 52) and Sophia Hohenzollern Queen Consort Greece (age 50). They were second cousins. He a great grandson of Queen Victoria of the United Kingdom. She a great granddaughter of Queen Victoria of the United Kingdom.
On 10 Mar 1921 [his son-in-law] King Carol II Hohenzollern Sigmaringen (age 27) and [his daughter] Helen Glücksburg (age 24) were married at Athens. She the daughter of Constantine I King Greece (age 52) and Sophia Hohenzollern Queen Consort Greece (age 50). They were second cousins. He a great grandson of Queen Victoria of the United Kingdom. She a great granddaughter of Queen Victoria of the United Kingdom.
On 27 Sep 1922 Constantine I King Greece (age 54) abdicated King Greece. [his son] Alexander I King Greece succeeded I King Greece. [his son] George II King Hellenes (age 32) succeeded II King Hellenes. [his daughter-in-law] Elisabeth Hohenzollern Sigmaringen Queen Consort Greece Queen Consort Hellenes (age 27) by marriage Queen Consort Hellenes.
On 11 Jan 1923 Constantine I King Greece (age 54) died.
On 13 Jan 1932 [his former wife] Sophia Hohenzollern Queen Consort Greece (age 61) died.
Kings Wessex: Great x 25 Grand Son of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 22 Grand Son of Owain "Great" King Gwynedd
Kings Seisyllwg: Great x 28 Grand Son of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 23 Grand Son of Maredudd ap Bleddyn King Powys
Kings England: Great x 4 Grand Son of King George II of Great Britain and Ireland
Kings Scotland: Great x 18 Grand Son of Robert "The Bruce" I King Scotland
Kings Franks: Great x 21 Grand Son of Louis VII King Franks
Kings France: Great x 15 Grand Son of Charles "Beloved Mad" VI King France
Great x 4 Grandfather: Peter August Oldenburg I Duke Schleswig-Holstein-Sonderburg-Beck 15 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Karl Anton Oldenburg I Duke Schleswig-Holstein-Sonderburg-Beck 16 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Sophie of Hesse-Philippsthal Duchess Schleswig-Holstein-Sonderburg-Beck
Great x 2 Grandfather: Friedrich Karl Ludwig Oldenburg I Duke Schleswig-Holstein-Sonderburg-Beck 17 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandmother: Frederica Charlotte Dohna Schlodien Duchess Schleswig-Holstein-Sonderburg-Beck
Great x 1 Grandfather: Friedrich Wilhelm Glücksburg Duke Schleswig Holstein Sonderburg Glücksburg 18 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 2 Grandmother: Friederike Schlieben Duchess Schleswig-Holstein-Sonderburg-Beck
GrandFather: King Christian IX of Denmark 2 x Great Grand Son of King George II of Great Britain and Ireland
Great x 4 Grandfather: William Hesse-Kassel 13 x Great Grand Son of King Henry III of England
Great x 3 Grandfather: Frederick Hesse-Kassel 14 x Great Grand Son of King Henry III of England
Great x 2 Grandfather: Charles Hesse-Kassel Grand Son of King George II of Great Britain and Ireland
Great x 4 Grandfather: King George II of Great Britain and Ireland
Son of King George I of Great Britain and Ireland
Great x 3 Grandmother: Mary Hanover Daughter of King George II of Great Britain and Ireland
Great x 4 Grandmother: Caroline Hohenzollern Queen Consort England 15 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 1 Grandmother: Louise Caroline Hesse-Kassel Duchess Schleswig Holstein Sonderburg Glücksburg Great Grand Daughter of King George II of Great Britain and Ireland
Great x 4 Grandfather: Christian VI King Denmark and Norway 14 x Great Grand Son of King Henry III of England
Great x 3 Grandfather: Frederick V King Denmark and Norway 15 x Great Grand Son of King Henry III of England
Great x 2 Grandmother: Louise Oldenburg Grand Daughter of King George II of Great Britain and Ireland
Great x 4 Grandfather: King George II of Great Britain and Ireland Son of King George I of Great Britain and Ireland
Great x 3 Grandmother: Louise Hanover Queen Consort Denmark and Norway Daughter of King George II of Great Britain and Ireland
Great x 4 Grandmother: Caroline Hohenzollern Queen Consort England 15 x Great Grand Daughter of King Henry "Curtmantle" II of England
Father: George I King Greece 3 x Great Grand Son of King George II of Great Britain and Ireland
Great x 4 Grandfather: William Hesse-Kassel 13 x Great Grand Son of King Henry III of England
Great x 3 Grandfather: Frederick Hesse-Kassel 14 x Great Grand Son of King Henry III of England
Great x 2 Grandfather: Frederick Hesse-Kassel Grand Son of King George II of Great Britain and Ireland
Great x 4 Grandfather: King George II of Great Britain and Ireland Son of King George I of Great Britain and Ireland
Great x 3 Grandmother: Mary Hanover Daughter of King George II of Great Britain and Ireland
Great x 4 Grandmother: Caroline Hohenzollern Queen Consort England 15 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 1 Grandfather: William Hesse-Kassel Great Grand Son of King George II of Great Britain and Ireland
GrandMother: Queen Louise Hesse-Kassel of Denmark 2 x Great Grand Daughter of King George II of Great Britain and Ireland
Great x 4 Grandfather: Christian VI King Denmark and Norway 14 x Great Grand Son of King Henry III of England
Great x 3 Grandfather: Frederick V King Denmark and Norway 15 x Great Grand Son of King Henry III of England
Great x 2 Grandfather: Prince Frederick Oldenburg 16 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Ferdinand Albert II Duke of Brunswick-Wolfenbüttel 14 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandmother: Juliana Maria Welf Queen Consort Denmark and Norway 15 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Princess Antoinette of Brunswick-Wolfenbüttel 15 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 1 Grandmother: Princess Charlotte of Denmark 14 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: Christian Ludwig II Duke of Mecklenburg-Schwerin 14 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Duke Louis of Mecklenburg-Schwerin 15 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 2 Grandmother: Duchess Sophia Frederica of Mecklenburg-Schwerin 13 x Great Grand Daughter of King Edward III of England
Great x 4 Grandfather: Francis Josias Saxe Coburg Saalfeld Duke Saxe Coburg Saalfeld 11 x Great Grand Son of King Edward III of England
Great x 3 Grandmother: Charlotte Sophie Saxe Coburg Saalfeld 12 x Great Grand Daughter of King Edward III of England
Great x 4 Grandmother: Duchess Anna Sophie Of Saxe-Coburg-Saalfeld 12 x Great Grand Daughter of King Edward III of England
Constantine I King Greece 4 x Great Grand Son of King George II of Great Britain and Ireland
Great x 4 Grandfather: Charles Frederick Duke of Holstein Gottorp 16 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandfather: Peter III of Russia 17 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 2 Grandfather: Paul Emperor of Russia 18 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 1 Grandfather: Tsar Nicholas I of Russia 3 x Great Grand Son of King George I of Great Britain and Ireland
Great x 3 Grandfather: Frederick Eugene Württemberg Duke Württemberg
Great x 2 Grandmother: Empress Sophie Dorothea of Russia 2 x Great Grand Daughter of King George I of Great Britain and Ireland
Great x 4 Grandfather: Friedrich Wilhelm Hohenzollern 13 x Great Grand Son of King Henry III of England
Great x 3 Grandmother: Friederike Sophie Dorothea Hohenzollern Great Grand Daughter of King George I of Great Britain and Ireland
Great x 4 Grandmother: Sophia Dorothea Hohenzollern Grand Daughter of King George I of Great Britain and Ireland
GrandFather: Konstantin Nikolayevich Holstein Gottorp Romanov 4 x Great Grand Son of King George I of Great Britain and Ireland
Great x 4 Grandfather: Augustus William Hohenzollern Grand Son of King George I of Great Britain and Ireland
Great x 3 Grandfather: Frederick William II King Prussia Great Grand Son of King George I of Great Britain and Ireland
Great x 2 Grandfather: Frederick William II King Prussia 2 x Great Grand Son of King George I of Great Britain and Ireland
Great x 4 Grandfather: Landgrave Louis IX of Hesse-Darmstadt 16 x Great Grand Son of King Henry "Curtmantle" II of England
Great x 3 Grandmother: Queen Frederica Louisa of Prussia 17 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 4 Grandmother: Countess Palatine Caroline of Zweibrücken
Great x 1 Grandmother: Charlotte Hohenzollern 3 x Great Grand Daughter of King George I of Great Britain and Ireland
Mother: Olga Constantinovna Holstein Gottorp Romanov Queen Consort Greece 5 x Great Grand Daughter of King George I of Great Britain and Ireland