The reredos of the Most Sacred Heart of Jesus, combining elements of Neo-Baroque and Neo-Classical style is an example of the 19th century altar structure.
Paulina Chełmecka, "Right side transept altar dedicated to The Most Sacred Heart of Jesus", [in:] "The Sacred Lesser Poland Heritage", 2024, source: https://sdm.upjp2.edu.pl/en/works/right-side-transept-altar-dedicated-to-the-most-sacred-heart-of-jesus