This 12th-century chapel is in the oldest part of town. Several historic sources mention the chapel. In 1350, it was dedicated to Saint Catharine of Alexandria. Restorations were carried out in 1896-1897 by Pierre Cuypers but more restorations were needed in 1921. In 1978 the walls on the inside were playfully painted in bright colours by Dutch painter Hans Truijen. The paintings (now in need of restoration) were resented by many of the locals but are considered an important work of art by many art aficionado’s. In any case, it's an interesting combination and well worth a visit. There are regular activities such as concerts or lectures.