Medieval Hum town was first mentioned in 1102 in the deed of gift by Marquis Ulrich II. The passage through the early 12th century double entrance gates, and then this one from 1562 leads us into the square. The exceptionally small area has all town features: the town loggia, nobility and folk houses, and the parish church with the priest residence.
The castle was located on the site of the current Church of the Assumption of the Blessed Virgin Mary (erected in 1802) on the highest point of the town, which allowed its control of the surrounding area. Rectangular in shape, 30 x 35 meters (typical dimensions of the time) and connected by two streets with the twin town gates, which facilitated better communication and protection. The castle was entered from the inside, from the town. Despite its basic defensive purpose, in the earlier era it was a seat of its owners – the feudal lords under the Patriarch of Aquileia.
Ever since the prehistoric times until the ruins of the Venetians in 1797, Hum was a defensive border town, full of life, conflicts, different rulers, war and peace. From the antiquity to the Late Middle Ages, it was used as a defensive castle of an estate. Often destroyed and renovated, it finally fell under the Venetian rule in 1412, which restored it completely to defend its own borders. Its most probable final fall occurred during the Uskok War (1612-1618), when the entire town was burned down and the castle was never renovated. Its stone was gradually being taken for building houses. Any trace of it was finally lost following the erection of the church.
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.