The painting Studium do postaci księcia Jana Finlandzkiego do obrazu ‘Katarzyna Jagiellonka w więzieniu w Gripsholmie’ by Józef Simmler features a portrait of Prince Jan Finlandzki. The colors are rich and vibrant, with deep blues and warm earth tones dominating the palette. The figure of the prince is depicted in a formal pose, dressed in elaborate attire that reflects his noble status.

The background is likely a muted tone, allowing the prince's figure to stand out prominently. This artwork is executed in oil on canvas, a common medium for portraits during the 19th century. The brushwork is detailed, particularly in the rendering of the prince's clothing and facial features. The dimensions are approximately 60 x 80 cm, making it a moderately sized painting suitable for display in various settings.

The realistic style captures the essence of the subject, emphasizing both his character and status. Józef Simmler was a Polish painter known for his historical and portrait works. This particular painting is a study for a larger work featuring Princess Katarzyna Jagiellonka, indicating Simmler's interest in Polish history and nobility. An interesting fact about this work is that it reflects the cultural and political context of Poland during the mid-19th century, a time of significant change and national identity formation.

Simmler's attention to detail and realism in this piece showcases his skill and dedication to portraying historical figures accurately.