The stone plaque set in the northern wall of the chancel of St. John Cantius Church in Kęty commemorates the main funder of the temple, Sykstus Lubomirski. The foundation also ensured the support of the priest who was taking care of the church and financing of possible renovation works.
Paulina Chełmecka, "Commemorative plaque", [in:] "The Sacred Lesser Poland Heritage", 2025, source: https://sdm.upjp2.edu.pl/en/works/commemorative-plaque-3