The tabernacle might have been made during the creation of the high altar, i.e. in the fourth quarter of the 18th century. The Biskupice tabernacle of the high altar takes the form typical of the 18th century.
Paulina Kluz, "Church tabernacle", [in:] "The Sacred Lesser Poland Heritage", 2025, source: https://sdm.upjp2.edu.pl/en/works/church-tabernacle-2