February 17 » Duke Friedrich and Duke Johann attempt to subdue the peasantry of Dithmarschen, Denmark, in the Battle of Hemmingstedt.
March 9 » The fleet of Pedro Álvares Cabral leaves Lisbon for the Indies. The fleet will discover Brazil which lies within boundaries granted to Portugal in the Treaty of Tordesillas.
March 29 » Cesare Borgia is given the title of Captain General and Gonfalonier by his father Rodrigo Borgia after returning from his conquests in the Romagna.
August 9 » Ottoman–Venetian War (1499–1503): The Ottomans capture Methoni, Messenia.
November 11 » Treaty of Granada: Louis XII of France and Ferdinand II of Aragon agree to divide the Kingdom of Naples between them.
December 24 » A joint Venetian–Spanish fleet captures the Castle of St. George on the island of Cephalonia.
April 27 » Combined forces of Spain and the Papal States defeat a French and Venetian army at the Battle of Bicocca.
June 26 » Ottomans begin the second Siege of Rhodes.
September 6 » The Victoria returns to Sanlúcar de Barrameda in Spain, the only surviving ship of Ferdinand Magellan's expedition and the first known ship to circumnavigate the world.
September 8 » Magellan–Elcano circumnavigation: Victoria arrives at Seville, technically completing the first circumnavigation.
January 15 » King Francis I of France gives Jean-François Roberval a commission to settle the province of New France (Canada) and provide for the spread of the "Holy Catholic faith".
February 12 » Santiago, Chile is founded by Pedro de Valdivia.
April 7 » Francis Xavier leaves Lisbon on a mission to the Portuguese East Indies.
June 26 » Francisco Pizarro is assassinated in Lima by the son of his former companion and later antagonist, Diego de Almagro the younger. Almagro is later caught and executed.
September 30 » Spanish conquistador Hernando de Soto and his forces enter Tula territory in present-day western Arkansas, encountering fierce resistance.
December 10 » Thomas Culpeper and Francis Dereham are executed for having affairs with Catherine Howard, Queen of England and wife of Henry VIII.
When copying data from this family tree, please include a reference to the origin: Frank Coster, "Family tree Coster", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_coster/I1840.php : accessed February 25, 2026), "Catharina von Mühlheim (1500-1541)".
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