The simple epitaph plaque dedicated to the marriage of Franciszek and Katarzyna Doening, who deceased in 1848 and 1849, was funded by the family and made of the so-called black Dębnik marble.
Agata Felczyńska, "Epitaph plaque of Franciszek Dominik Doening and Katarzyna (née Czurlik) Doening", [in:] "The Sacred Lesser Poland Heritage", 2025, source: https://sdm.upjp2.edu.pl/en/works/epitaph-plaque-of-franciszek-dominik-doening-and-katarzyna-nee-czurlik-doening