Anna Sieniawska (1604–1632) was the daughter of Aleksander Chodkiewicz, voivode of Trakai, and Katarzyna Korniaktowna. She was the wife of Prokop Sieniawski, who was a standard-bearer. She died at a young age. The figure of Anna Sieniawska emerges from the dark, dull background, in a frozen canonical pose, at the table with a book and a crucifix, emphasising the devoutness and modesty of the portrayed woman. The provincial artist has depicted the lovely face of the young woman with a tired look using graphic and delicate lines. The painting is dominated by deep black colour with inclusions of white, which surrounds the face. The portrait is characterized by a flat manner of execution. On the upper right side of the work there is the Kosciesza coat of arms with an inscription above: «ANNA Evphrozyna Zbychowa Chotkiewiczyw / Hrabianka na Sklowie / YMYSZY YGOLOGVRA / Sieniawska Chorazyna KORONNA /». Under the coat of arms is another inscription: «ROKU PAnSKIEGO 1632 / Miesianca / Maja Dnia. 28. Vmarla Godziny 14 / lat swoih. 28».