Portrait of John III Sobieski in Roman costume.

Portrait of Jan III Sobieski - oil painting on canvas measuring 139.5x113 cm. It is in the collection of the National Museum in Warsaw (reference number MP 4377). Jerzy Siemiginowski-Eleuter, then Daniel Schultz, was considered the author of the painting, but in 2004 this attribution was also questioned. The work was created in the range of 1673-77.