February 13 » Challenge of Barletta: Tournament between 13 Italian and 13 French knights near Barletta.
April 28 » The Battle of Cerignola is fought. It is noted as one of the first European battles in history won by small arms fire using gunpowder.
May 10 » Christopher Columbus visits the Cayman Islands and names them Las Tortugas after the numerous turtles there.
August 8 » King James IV of Scotland marries Margaret Tudor, daughter of King Henry VII of England at Holyrood Abbey in Edinburgh, Scotland.
November 1 » Pope Julius II is elected.
December 29 » The Battle of Garigliano (1503) was fought between a Spanish army under Gonzalo Fernández de Córdoba and a French army commanded by Ludovico II, Marquess of Saluzzo.
April 19 » The Treaty of Frankfurt between Protestants and the Holy Roman Emperor is signed.
April 27 » Re-founding of the city of Bogotá, New Granada (now Colombia), by Nikolaus Federmann and Sebastián de Belalcázar.
May 30 » In Florida, Hernando de Soto lands at Tampa Bay with 600 soldiers with the goal of finding gold.
June 10 » Council of Trent: Pope Paul III sends out letters to his bishops, delaying the Council due to war and the difficulty bishops had traveling to Venice.
October 6 » Spain's DeSoto expedition takes over the Apalachee capital of Anhaica for their winter quarters.
When copying data from this family tree, please include a reference to the origin: Stephen Clarke, "Clarke Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/clarke-family-tree/I392494371012.php : accessed April 30, 2025), "Isabella Infanta of Portugal and Algarves (1503-1539)".
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