Europe's Royal Family Tree
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Questions about Europe's royal families
Answered from the tree itself: every number below is counted from the data.
How many people are on Europe's Royal Family Tree?
7,554 people: 6,713 members of 97 royal and noble houses and the people they married, joined by 2,542 marriages, from 700 to today.
Who had the longest reign on the tree?
Louis XIV of France: 72 years as King of France and Navarre, 1643–1715. After them: Johann II, Prince of Liechtenstein (71 years), Elizabeth II (70 years), Frederick III, Holy Roman Emperor (69 years).
Which royal married most often?
Ivan the Terrible, 7 times: Anastasia Romanovna (1547), Maria Temryukovna (1561), Marfa Sobakina (1571), Anna Koltovskaya (1572), Anna Vasilchikova (1575), Vasilisa Melentyeva (1576), Maria Nagaya (1580).
Which royal had the most children?
Maria Theresa of Austria, with 16 children on the tree. Next: Francis I, Holy Roman Emperor (16), George III of Great Britain (15), Charlotte of Mecklenburg-Strelitz (15).
Which royal house is the largest here?
Wittelsbach, with 330 members on the tree. Then Wettin (315), Hohenzollern (315), Hesse (189).
Which two royal houses married each other most?
Hohenzollern and Wettin, 28 marriages. Then Habsburg and Wittelsbach (17), Wettin and Wittelsbach (15), Hesse and Hohenzollern (15).
How often did royals marry their cousins?
Of the 2,542 marriages on the tree, 533 joined two people who already shared a grandparent or great-grandparent, or an uncle and his niece. Among them: Anna of Austria, Queen of Spain and Philip II of Spain (1570); Mariana of Austria and Philip IV of Spain (1649); Ferdinand VII of Spain and Maria Christina of the Two Sicilies (1829).
Who has the most descendants on the tree?
Henry I the Fowler, with 5,127 descendants here. Then Mieszko I (5,118), Pepin the Short (5,088), Charlemagne (5,085).
Why is Queen Victoria called the grandmother of Europe?
Her nine children married into the royal houses of Europe. Of her 38 grandchildren on the tree, 7 became kings, queens or empresses: Wilhelm II, Sophia of Prussia, George V, Maud of Wales, Alexandra Feodorovna (Alix of Hesse), Marie of Romania, Victoria Eugenie of Battenberg.
How can I find out how two royals were related?
Open the tree, pick one of them, press "How were they related to…" and pick the other. The line between them is drawn on the sphere and the map, step by step. Some famous pairs are worked out here.
Where do the facts come from?
From Wikidata, with portraits from Wikimedia Commons and summaries from Wikipedia. See about this tree.
Are the borders on the map exact?
No. They are approximate historical borders, drawn for a few dozen years between 700 and 1914, and each realm is coloured by whoever on the tree held the throne of its capital.