The painting in the finial of one of the side altars at the parish church in Gruszów depicts a saint who appears rather rarely in Polish sacral visual arts - the semi-legendary St. Erasmus.
Paulina Chełmecka, "St. Erasmus ", [in:] "The Sacred Lesser Poland Heritage", 2024, source: https://sdm.upjp2.edu.pl/en/works/st-erasmus-1