The Livonian Order's stone castle is the oldest building in Dobele, and a national architectural monument. It was built on the site of an ancient Semigallian timber fortress from 1335 to 1339. A church was built and a park was laid out later.
This land hosted a settlement of Dobele's most ancient inhabitants – the Semigallians as early as 1000 years B.C. Surrounded by the ancient town, there stood a timber fortress, one of the administrative centres of ancient Semigallians. The castle has been mentioned several times in the Livonian Rhymed Chronicle telling about the 13th century battles between the locals and the German crusader knights. Between 1279 and 1289, Dobele castle withstood six enemy attacks. In 1289, the Semigallians burnt down their fortress and left, undefeated, for Rakte in Lithuania.
Until 1562, the castle was headquarters for the chief of the garrison and also the Komtur, commander of the district. During the period of the Duchy of Courland and Semigallia, several commanders were in charge of the castle, the last one being Christoph Georg von Ofenberg. After 1729, the castle built by the Order was abandoned and gradually fell in ruins. Works for the conservation of the ruins started were launched in 2002.
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.