Catarina Gattai (Catai) (1745–85), Italian dancer, singer and actress, about whom there is only uncertain and fragmentary information until she came to Poland; she purportedly dancedat La Pergola in Florence, and theatres in Venice and Prague (1761), and probably also in Milan. In Warsaw she made only a fairly brief appearance; she did not distinguish herself in any way which would have merited at least a brief mention in Wojciech Bogusławski’s Dzieje Teatru Narodowego [History of the National Theatre] published in Warsaw in 1820.Gattai had been King Stanisław August Poniatowski’s long-time mistress since the beginning of his reign. Stanisław August appointed her husband, Carlo Thomatis (Tomatis), director of the first public theatre in Warsaw. The couple arrived in Warsaw in December 1764. In thefollowing year, the king gave them the title de Valery, and in 1778 they acquired the Królikarnia estate. The king’s relationship with Catarina lasted for more than ten years. The first of Bacciarelli’s two portraits of Catarina Thomatis in the Łazienki Palace, which Alina Chyczewska dated to 1780–85, was made before 1783 because it is recorded in the first catalogue of the gallerywhich bears that date. [See D. Juszczak, H. Małachowicz, The Stanisław August Collection of Paintings at the Royal Łazienki. Catalogue, Royal Łazienki Museum, Warsaw 2016, no. 8, p. 72.]