The Église Saint-Polycarpe (Church of St. Polycarp) is the oldest church of the Oratory of Saint Philip Neri. The church, built by the Oratorians installed on the slopes, was completed in 1670, with the exception of the façade that was built in 1756 by architect Toussaint Loyer who also lengthened the nave.
On 19 June 1791, the Oratory Church became a parish church and took the name of St. Polycarp, as a tribute to Polycarp of Smyrna, master of Saint Pothinus and Irenaeus, who were the first two bishops of Lyon. The church has a famous organ, built by Augustine Zeiger in 1841.
The church has a facade decorated with four Corinthian pilasters topped by a triangular pediment. Louis Janmot made the painting depicting the Last Supper which is placed in the apse.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.