Paternal Family Tree: Alexander I King Greece
Maternal Family Tree: Alexander I King Greece
Alexander I King Greece and Aspasia Manos Queen Consort Greece were married. He the son of Constantine I King Greece and Sophia Hohenzollern Queen Consort Greece.
On 27th October 1889 [his father] Constantine I King Greece [aged 21] and [his mother] Sophia Hohenzollern Queen Consort Greece [aged 19] were married. She the daughter of [his grandfather] Frederick III King Prussia and [his grandmother] Victoria Empress Germany Queen Consort Prussia [aged 48]. He the son of George I King Greece [aged 43] and Olga Constantinovna Holstein Gottorp Romanov Queen Consort Greece [aged 38]. They were 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 1st August 1893 Alexander I King Greece was born to Constantine I King Greece [aged 24] and Sophia Hohenzollern Queen Consort Greece [aged 23]. He a great grandson of Queen Victoria of the United Kingdom.
On 18th March 1913 [his grandfather] George I King Greece [aged 67] died. His succeeded son [his father] Constantine [aged 44] succeeded I King Greece. [his mother] Sophia Hohenzollern Queen Consort Greece [aged 42] by marriage Queen Consort Greece.
On 11th June 1917 [his father] Constantine I King Greece [aged 48] abdicated King Greece. Alexander I King Greece [aged 23] succeeded I King Greece. Aspasia Manos Queen Consort Greece by marriage Queen Consort Greece.
On 25th October 1920 Alexander I King Greece [aged 27] died. His succeeded brother Paul [aged 18] succeeded I King Greece.
On 27th September 1922 [his father] Constantine I King Greece [aged 54] abdicated King Greece. Alexander I King Greece succeeded I King Greece. [his brother] George II King Hellenes [aged 32] succeeded II King Hellenes. Elisabeth Hohenzollern Sigmaringen Queen Consort Greece Queen Consort Hellenes [aged 27] by marriage Queen Consort Hellenes.
Kings Wessex: Great x 25 Grand Son of King Edmund "Ironside" I of England
Kings Gwynedd: Great x 23 Grand Son of Owain "Great" King Gwynedd
Kings Seisyllwg: Great x 29 Grand Son of Hywel "Dda aka Good" King Seisyllwg King Deheubarth
Kings Powys: Great x 24 Grand Son of Maredudd ap Bleddyn King Powys
Kings Godwinson: Great x 24 Grand Son of King Harold II of England
Kings England: Great Grand Son of Queen Victoria of the United Kingdom
Kings Scotland: Great x 9 Grand Son of King James I of England and Ireland and VI of Scotland
Kings France: Great x 16 Grand Son of King Charles V of France
Kings Duke Aquitaine: Great x 29 Grand Son of Ranulf I Duke Aquitaine
Kings Spain: Great x 14 Grand Son of John II King Aragon
Great x 4 Grandfather: Karl Anton Oldenburg I Duke Schleswig-Holstein-Sonderburg-Beck 
14 x Great Grand Son of King Philip III of France
Great x 3 Grandfather: Friedrich Karl Ludwig Oldenburg I Duke Schleswig-Holstein-Sonderburg-Beck 15 x Great Grand Son of King Philip III of France
Great x 4 Grandmother: Frederica Charlotte Dohna Schlodien Duchess Schleswig-Holstein-Sonderburg-Beck
Great x 2 Grandfather: Friedrich Wilhelm Glücksburg Duke Schleswig Holstein Sonderburg Glücksburg 16 x Great Grand Son of King Philip III of France
Great x 3 Grandmother: Friederike Schlieben Duchess Schleswig-Holstein-Sonderburg-Beck
Great x 1 Grandfather: King Christian IX of Denmark 2 x Great Grand Son of King George II of Great Britain and Ireland
Great x 4 Grandfather: Frederick Hesse-Kassel 8 x Great Grand Son of John II King Aragon
Great x 3 Grandfather: Charles Hesse-Kassel Grand Son of King George II of Great Britain and Ireland
Great x 4 Grandmother: Mary Hanover Daughter of King George II of Great Britain and Ireland
Great x 2 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: Frederick V King of Denmark and Norway 9 x Great Grand Son of John II King Aragon
Great x 3 Grandmother: Louise Oldenburg Grand Daughter of King George II of Great Britain and Ireland
Great x 4 Grandmother: Louise Hanover Queen Consort Denmark and Norway Daughter of King George II of Great Britain and Ireland
GrandFather: George I King Greece 3 x Great Grand Son of King George II of Great Britain and Ireland
Great x 4 Grandfather: Frederick Hesse-Kassel 8 x Great Grand Son of John II King Aragon
Great x 3 Grandfather: Frederick Hesse-Kassel Grand Son of King George II of Great Britain and Ireland
Great x 4 Grandmother: Mary Hanover Daughter of King George II of Great Britain and Ireland
Great x 2 Grandfather: William Hesse-Kassel Great Grand Son of King George II of Great Britain and Ireland
Great x 1 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: Frederick V King of Denmark and Norway 9 x Great Grand Son of John II King Aragon
Great x 3 Grandfather: Prince Frederick Oldenburg 10 x Great Grand Son of John II King Aragon
Great x 4 Grandmother: Juliana Maria Welf Queen Consort Denmark and Norway 15 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 2 Grandmother: Princess Charlotte of Denmark 11 x Great Grand Daughter of John II King Aragon
Great x 4 Grandfather: Duke Louis of Mecklenburg-Schwerin 13 x Great Grand Son of King Philip III of France
Great x 3 Grandmother: Duchess Sophia Frederica of Mecklenburg-Schwerin 10 x Great Grand Daughter of John II King Aragon
Great x 4 Grandmother: Charlotte Sophie Saxe Coburg Saalfeld 9 x Great Grand Daughter of John II King Aragon
Father: Constantine I King Greece 4 x Great Grand Son of King George II of Great Britain and Ireland
Great x 4 Grandfather: Peter III of Russia 9 x Great Grand Son of John II King Aragon
Great x 3 Grandfather: Paul Emperor of Russia 10 x Great Grand Son of John II King Aragon
Great x 2 Grandfather: Tsar Nicholas I of Russia 6 x Great Grand Son of King James I of England and Ireland and VI of Scotland
Great x 4 Grandfather: Frederick Eugene Duke Württemberg 13 x Great Grand Son of King Philip III of France
Great x 3 Grandmother: Empress Sophie Dorothea of Russia 5 x Great Grand Daughter of King James I of England and Ireland and VI of Scotland
Great x 4 Grandmother: Friederike Sophie Dorothea Hohenzollern 4 x Great Grand Daughter of King James I of England and Ireland and VI of Scotland
Great x 1 Grandfather: Konstantin Nikolayevich Holstein Gottorp Romanov 7 x Great Grand Son of King James I of England and Ireland and VI of Scotland
Great x 4 Grandfather: Frederick William II King Prussia 4 x Great Grand Son of King James I of England and Ireland and VI of Scotland
Great x 3 Grandfather: Frederick William III King Prussia 5 x Great Grand Son of King James I of England and Ireland and VI of Scotland
Great x 4 Grandmother: Queen Frederica Louisa of Prussia 10 x Great Grand Daughter of John II King Aragon
Great x 2 Grandmother: Charlotte Hohenzollern 6 x Great Grand Daughter of King James I of England and Ireland and VI of Scotland
Great x 4 Grandfather: Grand Duke Charles II of Mecklenburg Strelitz 10 x Great Grand Son of John II King Aragon
Great x 3 Grandmother: Queen Louise of Prussia 11 x Great Grand Daughter of John II King Aragon
Great x 4 Grandmother: Princess Friederike of Hesse-Darmstadt 10 x Great Grand Daughter of John II King Aragon
GrandMother: Olga Constantinovna Holstein Gottorp Romanov Queen Consort Greece 8 x Great Grand Daughter of King James I of England and Ireland and VI of Scotland
Alexander I King Greece Great Grand Son of Queen Victoria of the United Kingdom
Great x 4 Grandfather: Augustus William Hohenzollern 3 x Great Grand Son of King James I of England and Ireland and VI of Scotland
Great x 3 Grandfather: Frederick William II King Prussia 4 x Great Grand Son of King James I of England and Ireland and VI of Scotland
Great x 2 Grandfather: Frederick William III King Prussia 5 x Great Grand Son of King James I of England and Ireland and VI of Scotland
Great x 4 Grandfather: Landgrave Louis IX of Hesse-Darmstadt 9 x Great Grand Son of John II King Aragon
Great x 3 Grandmother: Queen Frederica Louisa of Prussia 10 x Great Grand Daughter of John II King Aragon
Great x 4 Grandmother: Countess Palatine Caroline of Zweibrücken
Great x 1 Grandfather: William I King Prussia 6 x Great Grand Son of King James I of England and Ireland and VI of Scotland
Great x 4 Grandfather: Charles Louis Frederick Duke of Mecklenburg 12 x Great Grand Son of King Philip III of France
Great x 3 Grandfather: Grand Duke Charles II of Mecklenburg Strelitz 10 x Great Grand Son of John II King Aragon
Great x 4 Grandmother: Princess Elisabeth Albertine of Saxe-Hildburghausen 9 x Great Grand Daughter of John II King Aragon
Great x 2 Grandmother: Queen Louise of Prussia 11 x Great Grand Daughter of John II King Aragon
Great x 4 Grandfather: Prince George William of Hesse-Darmstadt 9 x Great Grand Son of John II King Aragon
Great x 3 Grandmother: Princess Friederike of Hesse-Darmstadt 10 x Great Grand Daughter of John II King Aragon
Great x 4 Grandmother: Countess Maria Louise Albertine of Leiningen-Dagsburg-Falkenburg
GrandFather: Frederick III King Prussia 7 x Great Grand Son of King James I of England and Ireland and VI of Scotland
Mother: Sophia Hohenzollern Queen Consort Greece Grand Daughter of Queen Victoria of the United Kingdom
Great x 4 Grandfather: Ernest Frederick Saxe Coburg Saalfeld Duke Saxe Coburg Saalfeld 9 x Great Grand Son of John II King Aragon
Great x 3 Grandfather: Francis Saxe Coburg Gotha I Duke Saxe Coburg Gotha 10 x Great Grand Son of John II King Aragon
Great x 4 Grandmother: Sophia Antonia Brunswick-Wolfenbüttel Duchess Saxe Coburg Saalfeld 15 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 2 Grandfather: Ernest Saxe Coburg Gotha I Duke Saxe Coburg Gotha 11 x Great Grand Son of John II King Aragon
Great x 4 Grandfather: Heinrich XXIV Count Reuss of Ebersdorf
Great x 3 Grandmother: Augusta Reuss Duchess Saxe Coburg Gotha 10 x Great Grand Daughter of John II King Aragon
Great x 4 Grandmother: Karoline Ernestine of Erbach Schonberg 9 x Great Grand Daughter of John II King Aragon
Great x 1 Grandfather: Prince Albert Saxe Coburg Gotha 12 x Great Grand Son of John II King Aragon
Great x 4 Grandfather: Duke Ernest of Saxe Coburg Altenburg 9 x Great Grand Son of John II King Aragon
Great x 3 Grandfather: Duke Augustus of Saxe Coburg Altenburg 10 x Great Grand Son of John II King Aragon
Great x 4 Grandmother: Charlotte Saxe Meiningen Duchess Saxe Gotha Altenburg
Great x 2 Grandmother: Duchess Louise Dorothea of Saxe Coburg Altenburg 11 x Great Grand Daughter of John II King Aragon
Great x 4 Grandfather: Grand Duke Frederick Francis I of Mecklenburg-Schwerin 10 x Great Grand Son of John II King Aragon
Great x 3 Grandmother: Louise Charlotte Mecklenburg-Schwerin 10 x Great Grand Daughter of John II King Aragon
Great x 4 Grandmother: Princess Louise of Saxe-Gotha-Altenburg 9 x Great Grand Daughter of John II King Aragon
GrandMother: Victoria Empress Germany Queen Consort Prussia Daughter of Queen Victoria of the United Kingdom
Great x 4 Grandfather: Frederick Louis Hanover Prince of Wales Son of King George II of Great Britain and Ireland
Great x 3 Grandfather: King George III of Great Britain and Ireland Grand Son of King George II of Great Britain and Ireland
Great x 4 Grandmother: Augusta Saxe Coburg Altenburg 8 x Great Grand Daughter of John II King Aragon
Great x 2 Grandfather: Edward Augustus Hanover 1st Duke Kent and Strathearn Son of King George III of Great Britain and Ireland
Great x 4 Grandfather: Charles Louis Frederick Duke of Mecklenburg 12 x Great Grand Son of King Philip III of France
Great x 3 Grandmother: Charlotte Mecklenburg Strelitz Queen Consort England 10 x Great Grand Daughter of John II King Aragon
Great x 4 Grandmother: Princess Elisabeth Albertine of Saxe-Hildburghausen 9 x Great Grand Daughter of John II King Aragon
Great x 1 Grandmother: Queen Victoria of the United Kingdom Grand Daughter of King George III of Great Britain and Ireland
Great x 4 Grandfather: Ernest Frederick Saxe Coburg Saalfeld Duke Saxe Coburg Saalfeld 9 x Great Grand Son of John II King Aragon
Great x 3 Grandfather: Francis Saxe Coburg Gotha I Duke Saxe Coburg Gotha 10 x Great Grand Son of John II King Aragon
Great x 4 Grandmother: Sophia Antonia Brunswick-Wolfenbüttel Duchess Saxe Coburg Saalfeld 15 x Great Grand Daughter of King Henry "Curtmantle" II of England
Great x 2 Grandmother: Marie Luise Victoria Saxe Coburg Gotha Duchess Kent and Strathearn 11 x Great Grand Daughter of John II King Aragon
Great x 4 Grandfather: Heinrich XXIV Count Reuss of Ebersdorf
Great x 3 Grandmother: Augusta Reuss Duchess Saxe Coburg Gotha 10 x Great Grand Daughter of John II King Aragon
Great x 4 Grandmother: Karoline Ernestine of Erbach Schonberg 9 x Great Grand Daughter of John II King Aragon