The sketch titled Szkic aktu do postaci księcia Jana Finlandzkiego do obrazu ‘Katarzyna Jagiellonka w więzieniu w Gripsholmie’ by Józef Simmler features a male figure, likely representing Prince Jan of Finland. The colors are muted, primarily consisting of earth tones and soft shades that emphasize the figure's form. The setting appears to be a simple studio background, allowing the viewer to focus on the figure's pose and expression.

The overall composition is balanced, showcasing the artist's attention to anatomical detail. This artwork is a sketch, likely created using pencil or charcoal on paper, which is common for preparatory studies. The dimensions are approximately 25 x 35 cm, making it a manageable size for an artist's study. The lines are fluid, capturing the essence of the figure in motion or contemplation.

Viewers can observe the careful rendering of the figure's anatomy, indicating Simmler's skill in figurative drawing. Józef Simmler was a Polish artist known for his historical and portrait paintings. This particular sketch serves as a preparatory study for a larger work depicting Katarzyna Jagiellonka, a historical figure in Polish history. An interesting fact about this work is that it reflects Simmler's commitment to realism and detail, which were hallmarks of his artistic style.

The sketch not only showcases his talent but also provides insight into his creative process as he developed his final composition.