February 18 » George, Duke of Clarence, convicted of treason against his older brother Edward IV of England, is executed in private at the Tower of London.
April 26 » The Pazzi family attack Lorenzo de' Medici and kill his brother Giuliano during High Mass in Florence Cathedral.
When copying data from this family tree, please include a reference to the origin: Gordon Gray Warder, "Stevens Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/stevens-family-tree/I262353060584.php : accessed May 4, 2025), "Sir Roger Lewknor (> 1412-1478)".
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