April 11
Overview
Holidays & Observances
Christianfeast day:
Antipas of Pergamum(Greek Orthodox Church), Barsanuphius, Elena Guerra, Gemma Galgani, Godeberta, Guthlac of Crowland, George Selwyn(Anglicanism), Stanislaus of Szczepanów, April 11 (Eastern Orthodox liturgics)
A collective commemoration in the Eastern Orthodox and Anglican churches honoring several saints on April 11.
Juan Santamaría Day, anniversary of his death in theSecond Battle of Rivas. (Costa Rica)
Costa Rica honors national hero Juan Santamaría on April 11, commemorating his sacrifice during the Second Battle of Rivas in 1856.
International Louie Louie Day
International Louie Louie Day celebrates the enduring popularity of the rock 'n' roll classic Louie Louie on April 11.
World Parkinson's Day
World Parkinson's Day raises global awareness about Parkinson's disease and supports patients and caregivers every April 11.
Antipas of Pergamum(Greek Orthodox Church)
Saint Antipas of Pergamum is celebrated on April 11 as an early Christian martyr and bishop in the Greek Orthodox tradition.
Barsanuphius
Saint Barsanuphius of Gaza, honored on April 11, was a 6th-century desert hermit renowned for his spiritual counsel.
Elena Guerra
Blessed Elena Guerra, commemorated on April 11, was a 19th-century Italian nun and mystic dedicated to the Apostolic Work of the Holy Spirit.
Gemma Galgani
Saint Gemma Galgani, celebrated on April 11, was an Italian mystic known for her visions and stigmata in the late 19th century.
Godeberta
Saint Godeberta, honored on April 11, was a 7th-century Frankish abbess celebrated for her piety and service.
Events
Flavius Anastasius becomes Byzantine emperor, with the name of Anastasius I.
In 491, Flavius Anastasius ascended to the Byzantine throne as Emperor Anastasius I, initiating a lengthy reign of administrative and fiscal reform.
Batu Khan defeats Béla IV of Hungary at the Battle of Mohi.
In 1241, Mongol commander Batu Khan's forces delivered a crushing blow to King Béla IV of Hungary at the Battle of Mohi, opening the gates of Central Europe to widespread devastation.
War of the League of Cambrai: Franco-Ferrarese forces led by Gaston de Foix and Alfonso I d'Este win the Battle of Ravenna against the Papal-Spanish forces.
In 1512, Franco-Ferrarese troops under Gaston de Foix and Alfonso I d'Este won a fierce victory over Papal-Spanish forces at the Battle of Ravenna during the War of the League of Cambrai.
Italian War of 1542–46: A French army defeats Habsburg forces at the Battle of Ceresole, but fails to exploit its victory.
In 1544, French forces routed Habsburg troops at the Battle of Ceresole during the Italian War of 1542–46, yet failed to leverage their triumph.
William III and Mary II are crowned as joint sovereigns of Great Britain on the same day that the Scottish Parliament concurs with the English decision of 12 February.
On April 11, 1689, William III and Mary II were crowned joint monarchs of England and Scotland, cementing the constitutional settlement of the Glorious Revolution.
France and Great Britain sign the Treaty of Utrecht, bringing an end to the War of the Spanish Succession (Queen Anne's War). Britain accepts Philip V as King of Spain, while Philip renounces any claim to the French throne.
The 1713 Treaty of Utrecht concluded the War of the Spanish Succession, confirming Philip V as King of Spain and reshaping the European balance of power.
Premiere of Johann Sebastian Bach's St Matthew Passion BWV 244b at St. Thomas Church in Leipzig, Electorate of Saxony (now Germany).
Johann Sebastian Bach's St Matthew Passion premiered at St. Thomas Church in Leipzig on April 11, 1727, showcasing his profound mastery of sacred music.
Battle of the Basque Roads: Admiral Lord Gambier fails to support Captain Lord Cochrane, leading to an incomplete British victory over the French fleet.
In the 1809 Battle of the Basque Roads, Captain Lord Cochrane's daring fireship attack was undermined by Admiral Lord Gambier's indecision, yielding an incomplete British victory.
The Treaty of Fontainebleau ends the War of the Sixth Coalition against Napoleon Bonaparte, and forces him to abdicate unconditionally for the first time.
The Treaty of Fontainebleau in 1814 forced Napoleon to abdicate unconditionally, ending the War of the Sixth Coalition and paving the way for the Bourbon Restoration.
Births
Septimius Severus
Septimius Severus was a Roman emperor from 193 to 211 AD, known for strengthening the empire's frontiers and founding the Severan dynasty.
William of Winchester
William of Winchester was a medieval German nobleman who became the first Lord of Lüneburg and strengthened his family's influence in northern Germany.
Andronikos IV Palaiologos
Andronikos IV was a Byzantine co-emperor whose tumultuous reign was marked by revolts against his father and brief seizure of the throne.
John I of Portugal
John I, known as John of Aviz, was the Portuguese king who secured independence from Castile and began the Age of Discoveries.
Frederick I
Frederick I, called 'the Warlike', was the first Wettin prince to serve as Elector of Saxony, bolstering his family's power within the Holy Roman Empire.
Roger Mortimer
Roger Mortimer was an English nobleman and heir presumptive to King Richard II, whose untimely death altered the line of succession.
George I
George I was a duke of the Griffin dynasty who ruled Pomerania during the early Reformation and maintained regional autonomy.
Bartholomeus Strobel
Bartholomeus Strobel was a Baroque painter whose lavish banquet scenes and portraits earned him patrons across Central Europe.
John Eliot
John Eliot was an English parliamentarian known for defending parliamentary privileges and opposing royal prerogative under Charles I.
Deaths
Yang Guang
Emperor Yang of Sui was the second ruler of the Sui Dynasty, known for his grand construction projects and ambitious military campaigns.
Donus
Pope Donus led the Catholic Church from 676 to 678, noted for his liturgical reforms and charitable acts.
Herman I
Herman I served as Archbishop of Cologne and imperial chancellor under the early Ottonian kings in 10th-century East Francia.
Romanos III Argyros
Romanos III Argyros ruled as Byzantine emperor from 1028 to 1034, remembered for his administrative reforms and lavish building programs.
Anawrahta
Anawrahta was the 11th-century founder of Burma's Pagan Empire, renowned for unifying the Irrawaddy valley and promoting Theravada Buddhism.
Stanislaus of Szczepanów
Stanislaus of Szczepanów was an 11th-century Bishop of Kraków, revered as a martyr and later canonized as a saint.
Stephen IV
Stephen IV briefly reigned as King of Hungary and Croatia in the mid-12th century amidst dynastic rivalry.
Llywelyn the Great
Llywelyn the Great was a 13th-century Welsh prince who united Gwynedd and established Welsh autonomy against English encroachment.
Ramadan ibn Alauddin
Ramadan ibn Alauddin was the first documented Muslim in Korea, known from a 14th-century tombstone discovered in Kaesong.