The epitaph plaque of Katarzyna Gebauer, who deceased in 1856, was funded by her siblings and made of the so-called black Dębnik marble.
Agata Felczyńska, "Epitaph plaque of Katarzyna Gebauer", [in:] "The Sacred Lesser Poland Heritage", 2024, source: https://sdm.upjp2.edu.pl/en/works/epitaph-plaque-of-katarzyna-gebauer