The opening paragraph of her Wikipedia article, "Caterina Sforza, Countess of Forlì (early 1463 – 28 May 1509) was an Italian noblewoman, the illegitimate daughter of Galeazzo Maria Sforza, Duke of Milan and Lucrezia Landriani, the wife of the courtier Gian Piero Landriani, a close friend of the Duke. Raised in the refined Milanese court, Caterina later held the titles of Lady of Imola and Countess of Forlì, by her marriage to Girolamo Riario. She was also the Regent for her first-born son, Ottaviano. The descendant of a dynasty of noted condottieri, Caterina, from an early age, distinguished herself by her bold and impetuous actions taken to safeguard her possessions from possible usurpers, and to defend her dominions from attack, when they were involved in political intrigues that were a distinguishing feature of 15th century Italy." She married three times, first to Girolamo Riario, second to Giacomo Feo, and third to Giovanni de' Medici who is known as the hero Giovanni dalle Bande Nere. By him, she is ancestress to Queen (of France) Marie de Medici, Queen (of England) Henrietta Maria, and duchesse d'Orléans Henrietta Anne Stuart. She also faced the dangerous wrath of Cesare Borgia, Lucrezia Borgia's brother. She is also the third woman from the left, in the Three Graces trio, in Sandro Boticelli's work Primavera.
Forli is located south of Ravenna near the Adriatic coast amid some of the contentious city-states of Renaissance Italy - Florence, Venice, and Bologna, etc., etc., etc. Imola is about halfway between Forli and Bologna.
From Wikimedia; some white spots on her dress were removed with Photoshop by gogm.