The small church is the most characteristic monument of Byzantine Calabria and it was presumably founded between the end of the 10th and the beginning of the 11th century. The plant is a Greek cross with three apses and five domes. The interior is divided into nine square spaces by the presence of four Roman columns and it is frescoed with wall paintings. The small windows of the domes allow the light to filter, expanding the space. Outside, the complex is compact and characterized by the perfect mimesis with the landscape. There are several hypotheses about its foundation and original function: the most accredited thesis intends the Catholic as annexed to a monastery probably dedicated to the Assumption, as evidenced by its own etymology and by the quotation “per dexeteram Catholici”.