27 May 1508 - Death of Ludovico Sforza (also known as Ludovico il Moro)

He was Duke of Milan from 1489 until 1500. A member of the Sforza family, he was the second son of Francesco I Sforza. He was famed as a patron of Leonardo da Vinci and other artists, and presided over the final and most productive stage of the Milanese Renaissance. He is probably best known as the man who commissioned The Last Supper.

26 May 1232-Pope Gregory IX Begins Medieval Inquisition in Aragon

26 May 1328-William of Ockham Forced to Flee Avignon by Pope John XXII

26 May 1478 - Birth of pope Clement VII, born Giulio di Giuliano de' Medici

24 May 1671 - Birth of Gian Gastone de' Medici, Grand Duke of Tuscany.He was the seventh and last Medicean Grand Duke of Tuscany. He was the second son of Grand Duke Cosimo III and Marguerite Louise d'Orléans. His sister, Electress Palatine Anna Maria Luisa, arranged his marriage to the wealthy and widowed Anna Maria Franziska of Saxe-Lauenburg in 1697. The couple despised each other and had no children. As Grand Prince Ferdinando, Gian Gastone's elder brother, predeceased Cosimo III, Gian Gastone succeeded his father in 1723.

23 May  1493 - King Charles VIII & Maximilian I of Austria signs Peace of Senlis

23 May 1498-Dominican Friar Girolamo Savonarola Executed by Being Burned Alive

23 May  1536 - Pope Paul III installs Portugese inquisition

20 May 1470 - Birth of Pietro Bembo, cardinal and theologian

20 May 1495-French King Charles VIII leaves Naples

20 May 1503 - Death of Lorenzo di Pierfrancesco de' Medici nicknamed the Popolano, he was an Italian banker and politician, and the brother of Giovanni il Popolano. He belonged to the junior (or "Popolani") branch of the House of Medici of Florence.

20 May 1509 - Death of Catherina Sforza, Italian duchess of Forli