Dating from the first half of the 17th century this large and fairly unassuming church built at the behest of Kristupas Radvila II is more famous for what lies underneath it than for anything found inside. The interior is almost bare, with a few remaining examples of gorgeous carved woodwork including a magnificent oak Renaissance pulpit as well as some extraordinary photographs of teenagers playing basketball in it during the Soviet occupation. Under the floor down a few wooden steps are six beautifully restored caskets containing the remains of several of the extraordinary Radvila family. Be sure to get the full tour complete with background information and a look at the photograph of one of the mummies inside. To gain access, you need to buy a ticket at the Kėdainiai Regional Museum (see Museums).

Open 11:00 - 16:00. Closed Sun, Mon (May 1-Sep 31)