January 8 » The papal bull Romanus Pontifex awards the Kingdom of Portugal exclusive trade and colonization rights to all of Africa south of Cape Bojador.
February 4 » In the Thirteen Years' War, the Secret Council of the Prussian Confederation sends a formal act of disobedience to the Grand Master.
March 6 » Thirteen Years' War: Delegates of the Prussian Confederation pledge allegiance to King Casimir IV of Poland who agrees to commit his forces in aiding the Confederation's struggle for independence from the Teutonic Knights.
April 9 » The Treaty of Lodi is signed, establishing a balance of power among northern Italian city-states for almost 50 years.
September 18 » Thirteen Years' War: In the Battle of Chojnice, the Polish army is defeated by the Teutonic knights.
April 14 » In England, the Yorkists under Edward IV defeat the Lancastrians under the Earl of Warwick at the Battle of Barnet; the Earl is killed and Edward IV resumes the throne.
May 4 » Wars of the Roses: The Battle of Tewkesbury: Edward IV defeats a Lancastrian Army and kills Edward of Westminster, Prince of Wales.
October 10 » Sten Sture the Elder, the Regent of Sweden, with the help of farmers and miners, repels an attack by King Christian I of Denmark.
When copying data from this family tree, please include a reference to the origin: Brian K. Stephenson , "Stephenson Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/stephenson-family-tree/I74164.php : accessed May 4, 2025), "Thomas Digby (1454-1471)".
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