The fate of Klara Zach, 1911, by Hungarian painter Aladár Körösfői-Kriesch
According to wikipedia.pl, her story is as follows : "The figure of Klara is also mentioned in Jan Długosz's Annals in the description of Felicjan Zach's assassination attempt on the Hungarian king Charles Robert on April 17, 1330 [4] . Felicjan's daughter, Clara stayed at the court of Queen Elizabeth, where she was the queen's maid along with other girls from rich, noble families. Klara was to be distinguished by her extraordinary beauty, which was to attract the attention of Prince Casimir who stayed at the turn of 1329 and 1330 [5] with his sister Elizabeth at the castle in Visegrád . The meetings between Casimir and Klara were mediated by Elżbieta, who came with the court to the prince who pretended to be ill. The queen then left the duke's chamber alone, leaving Clara there and allowing her to be raped . After some time, the abused lady-in-waiting confided in her father about this event, asking him to avenge her disgrace. As Casimir had already left Hungary, Klara's father turned his anger against Charles, the ruler of Hungary. On April 17, 1330, he tried to murder the king and his family, but he was captured by the royal knights and murdered. The anger of Charles Robert fell on the entire Zach family. A cruel fate also befell Klara, who was deprived of her nose, lips and fingers on both hands. She was shown half-dead around the country, forced to confess her own and her father's crimes."