Église Saint-Pantaléon Church was built in the 12th century. The first patron saint was saint Himère. After the epidemic of plague between the years 1337 and 1348, saint Pantaleon was chosen as saint patron. In 1835 as the church was too small, a new one was built. But from 1850, many cracks in the walls appeared. In 1874 and 1878, a new church was built with a larger nave. The roman bell tower was preserved. Behind the church, there are some archways from an old chapel Saint-Michel, which was an ossuary.
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.