Year 1474 (MCDLXXIV) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. Events January–December February – The Treaty of Utrecht puts an end to the Anglo-Hanseatic War. March 19 – The Senate of the Republic of Venice enacts the Venetian Patent Statute, one of the earliest patent systems in the world. New and inventive devices, once put into practice, have to be communicated to the Republic to obtain the right to prevent others from using them. This is considered the first modern patent system. July 25 – By signing the Treaty of London, Charles the Bold of Burgundy agrees to support Edward IV of England's planned invasion of France. December 12 – Upon the death of Henry IV of Castile, a civil war ensues between his designated successor Isabella I of Castile, and her niece Juana, who is supported by her husband, Afonso V of Portugal. Isabella wins the civil war after a lengthy struggle, when her husband, the newly crowned Ferdinand II of Aragon, comes to her aid. Date unknown Marsilio Ficino completes his book Theologia Platonica (Platonic Theology). Axayacatl defeats the Matlatzinca of the Toluca Valley. Births January 7 – Thihathura II of Ava (d. 1501) March 1 – Angela Merici, Italian religious leader and saint (d. 1540) March 21 – Angela Merici, Italian religious leader and saint (d. 1540) May 5 Juan Diego, Roman Catholic Saint from Mexico (d. 1548) Giovanni Stefano Ferrero, Italian cardinal (d. 1510) May 18 – Isabella d'Este, Marquise of Mantua (d. 1539) August 6 – Luigi de' Rossi, Italian cardinal (d. 1519) September 8 – Ludovico Ariosto, Italian poet (d. 1533) October 6 – Luigi d'Aragona, Italian cardinal (d. 1518) October 7 – Bernhard III, Margrave of Baden-Baden (d. 1536) October 13 – Mariotto Albertinelli, High Renaissance Italian painter of the Florentine school (d. 1515) November 7 – Lorenzo Campeggio, Italian Cardinal (d. 1539) November 8 – Francesco Vettori, Italian diplomat (d. 1539) November 11 – Bartolomé de las Casas, Spanish Dominican friar, historian, and social reformer (d. 1566) December 24 – Bartolomeo degli Organi, Italian musician (d. 1539) date unknown Anacaona, Taino queen and poet (d. 1503) Juan Diego, Mexican Catholic saint (d. 1548) Giacomo Pacchiarotti, Italian painter (d. 1539 or 1540) Cuthbert Tunstall, English bishop and diplomat (d. 1559) Humphrey Kynaston, English highwayman (d. 1534) probable Sebastian Cabot, Venetian explorer (d. c.