Caterina Sforza was an Italian noblewoman who served as a regent for her son Ottaviano, the Lord of Imola and Forlì. Caterina is among the few women who caught the attention of Italian Renaissance writer Niccolò Machiavelli who discussed her at length. In 2010, she became the subject of a historical novel titled Scarlet Contessa.
Mary of Modena, the second wife of King James II of England, who was also James VII of Scotland, reigned as the queen of England, Ireland, and Scotland. It is believed she induced James to escape to France during the Glorious Revolution, when William of Orange invaded England.
Matilda of Tuscany, who was the countess of Tuscany and belonged to the House of Canossa. She is mostly remembered for her role in the clash between the Holy Roman Emperor and the papacy. She later became a mythical figure in Italy, with appearances in literary works, music, and art.
An ideal elite Renaissance woman, Bona Sforza was the queen of Poland and the wife of Sigismund I the Old. She is remembered for her fiery resistance to the Holy Roman Emperor, Maximilian I, when he suggested Bona be planted as a Habsburg spy to counter the Jagiellonian dynasty.