It has not been agreed among researchers whether the altar was made in the first half of the 18th or the 19th century. It is, however, seen that its form clearly refers to the Baroque art solutions. The used structure was created in the modern era by constructing the single-tiered reredoes, with a painting set in the central part of the first tier and a smaller one in its altar finial.
Agata Felczyńska, "Left altar of Our Lady of the Immaculate Conception in chancel area", [in:] "The Sacred Lesser Poland Heritage", 2025, source: https://sdm.upjp2.edu.pl/en/works/left-altar-of-our-lady-of-the-immaculate-conception-in-chancel-area