Ливонский орден
Castles played an important role in the strategy of the Livonian Order to expand into the Semigallian territory. They followed the line of rivers and some of them were established on native fortification sites. In 1250, the whole of Semigallia was conquered by the Livonian Order. Four years later, they split this territory between themselves and the Bishopric of Riga. In 1258, the Semigallians rebelled and managed to temporarily liberate themselves. In 1265, the Livonian Order began construction of Mintauja castle (Mithow, Mytowe). In 1272, Semigallia finally succumbed to the Livonian Order.