The altar for the chapel with statues of St. Joachim and St. Anne was probably made by Ignacy and Antoni Kornecki in the fourth quarter of the 18th century. In the altar finial there was originally a painting of St. Sebastian, changed into a painting of St. Joseph at the beginning of the 20th century. A reredos is in the aedicula type, i.e. a single-storey structure with an altar finial, placed on a pair of supports. This type of structures was most popular in the 18th century, intended for more modest, in terms of architecture, side altars.
Paulina Kluz, "Altar in the chapel", [in:] "The Sacred Lesser Poland Heritage", 2021, source: https://sdm.upjp2.edu.pl/en/works/altar-in-the-chapel-3