Apr 26 Simonetta Vespucci, Italian noblewoman & inspiration of Botticelli, dies at 23 Jun 8 George Neville, English archbishop and statesman Jul 6 Regiomontanus [Johannes Müller von Königsberg], German mathematician and astronomer, prepares astronomic tables, dies at 40 Aug 4 Jacob van Armagnac-Pardiac, French duke of Nemours, beheaded Vlad the Impaler Dec 14 Vlad III the Impaler, Wallachian prince, killed in battle at 45 Wallachian Prince Vlad the Impaler Dec 26 Galeazzo Maria Sforza, duke of Milan, murdered 1475 Deaths in History by Year 1477