Heers Castle built in the 13th century. Of its many owners, among the most notorious was Raes van Heers (1418–77), who was defeated and driven into exile by Charles the Bold at the Battle of Brustem in 1467. The castle, and the town of Heers, were laid waste by Charles's troops, although the castle was eventually repaired after Raes' death by his widow.
The family de Rivière d'Arschot lived here until the 18th century, when Barbara, daughter and heiress of the last Count, Henri de Rivière d'Arschot, became abbess of Herkenrode Abbey; on her death in 1744, the family became extinct.
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.