The epitaph plaque of father Marcin Dobruchowski, a soldier of Stanisław Żółkiewski and a courtier of Cracovian bishop Marcin Szyszkowski, was probably made of Dębnik marble (a material extremely popular in Polish art of the Baroque era) in the workshop in Dębnik or Cracow, after his death in 1640.
Józef Skrabski, "Epitaph plaque of father Marcin Dobruchowski", [in:] "The Sacred Lesser Poland Heritage", 2025, source: https://sdm.upjp2.edu.pl/en/works/epitaph-plaque-of-father-marcin-dobruchowski