In 1171the Bishop Gedeon founded a collegiate church under the invocation of the Ascension located on Wzgórze Zamkowe. It was a Romanesque-style temple. It was rebuilt and extended several times throughout ages to finally resemble an early Baroque three-aisle basilica.
In the interiors of the Cathedral it is worth seeing the Gothic triptych, referred to as “the triptych of Łagiewniki”, depicting a crowning ceremony of the Mother of God and the baroque main altar designed by Fontana. There you can also find a painting depicting the Gracious Mother of God of Kielce with her Child. Tourist may also see the cathedral treasury and descent into the underground crypt of the bishops of Kielce.