Sebastian of Portugal

1554 - 1578

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Icon of person Sebastian of Portugal

Sebastian (Portuguese: Sebastião I [sɨbɐʃˈti.ɐ̃w̃]; 20 January 1554 – 4 August 1578) was King of Portugal from 11 June 1557 to 4 August 1578 and the penultimate Portuguese monarch of the House of Aviz. He was the son of João Manuel, Prince of Portugal, and his wife, Joanna of Austria. He was the grandson of King John III of Portugal and Holy Roman Emperor Charles V. He disappeared (presumably killed in action) in the battle of Alcácer Quibir, against the Saadians of Morocco. Read more on Wikipedia

Since 2007, the English Wikipedia page of Sebastian of Portugal has received more than 533,528 page views. His biography is available in 45 different languages on Wikipedia (up from 44 in 2019). Sebastian of Portugal is the 1,021st most popular politician (down from 824th in 2019), the 20th most popular biography from Portugal (down from 18th in 2019) and the 7th most popular Portuguese Politician.

Sebastian of Portugal is most famous for his role in the Battle of Alcacer Quibir in 1578. He led the Portuguese army to victory against the Moroccan invaders.

Memorability Metrics

  • 530k

    Page Views (PV)

  • 76.29

    Historical Popularity Index (HPI)

  • 45

    Languages Editions (L)

  • 6.49

    Effective Languages (L*)

  • 3.15

    Coefficient of Variation (CV)

Page views of Sebastian of Portugals by language


Among politicians, Sebastian of Portugal ranks 1,021 out of 15,710Before him are John I of Portugal, Hamid Karzai, Yazdegerd III, Joachim Gauck, James Madison, and Shaka. After him are Mohammad Mosaddegh, Cleopatra Selene II, Édouard Daladier, Agrippina the Elder, Demetrius I of Macedon, and Emperor Wu of Jin.

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Among people born in 1554, Sebastian of Portugal ranks 3Before him are Pope Gregory XV and Elisabeth of Austria, Queen of France. After him are Walter Raleigh, Charles, Duke of Mayenne, Philip William, Prince of Orange, Philip Sidney, Bálint Balassi, Ernest of Bavaria, Louis III, Duke of Württemberg, Richard Hooker, and John Lyly. Among people deceased in 1578, Sebastian of Portugal ranks 3Before him are Mihrimah Sultan and John of Austria. After him are Catherine of Austria, Queen of Portugal, Uesugi Kenshin, James Hepburn, 4th Earl of Bothwell, Joanna of Austria, Grand Duchess of Tuscany, Pierre Lescot, Sebastiano Venier, Pietro Andrea Mattioli, Piali Pasha, and Giovanni Battista Moroni.

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In Portugal

Among people born in Portugal, Sebastian of Portugal ranks 20 out of 479Before him are Pope John XXI (1215), Luís de Camões (1524), Isabella of Portugal (1503), John II of Portugal (1455), Afonso de Albuquerque (1453), and John I of Portugal (1358). After him are Cristiano Ronaldo (1985), Afonso V of Portugal (1432), John III of Portugal (1502), Pedro I of Brazil (1798), José Mourinho (1963), and Peter I of Portugal (1320).

Among POLITICIANS In Portugal

Among politicians born in Portugal, Sebastian of Portugal ranks 7Before him are António de Oliveira Salazar (1889), António Guterres (1949), Manuel I of Portugal (1469), Afonso I of Portugal (1109), John II of Portugal (1455), and John I of Portugal (1358). After him are Afonso V of Portugal (1432), John III of Portugal (1502), Pedro I of Brazil (1798), Peter I of Portugal (1320), Manuel II of Portugal (1889), and Edward, King of Portugal (1391).