The Cathedral of San Gerardo is the main church or duomo of the city of Potenza. A temple at the site, dedicated to the Virgin of the Assumption, likely dated to the 5th or 6th century, when it was supposedly founded by Saint Orontius of Lecce. A new church dedicated to St Gerardo della Porta, who became patron of the town and whose relics are sheltered here, was built between the 12th and 13th centuries, under the patronage of the bishop Bartolomeo (1197-1206). The five-story stone belltower from this church, attributed to designs by Sàrolo di Muro Lucano, still exists.
The present church is mainly due to a reconstruction during 1783 to 1799 in neoclassical-style with a design by Antonio Magri, a pupil of Luigi Vanvitelli. Since the church has required repairs after various earthquakes and a bombardment in 1943.
The ceilings and the apse have an elaborate program of frescoes painted in the 20th century. The ceiling was painted (1933-1934) from the façade to the presbytery with scenes from the old to new testament by the painter Mario Prayer. The bronze doors (1968) were created by Giuseppe Niglia. Below the main altar is a crypt with archeologic evidence of prior structures in a mosaic pavement. The dome has frescoes depicting a procession of St Gerard. The apse has a Christ the Redeemer frescoed against a bright background. The chapel of St Gerard has a 15th-century reliquary statue.
References:Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.