In the second half of the 13th century, due to their attempts tat colonizing the mountains, the Olomouc bishops came into conflict with the Jeseníky landlords. Because of the pressure from Olomouc, the brothers Vok and Pavel of the traditional Moravian family of Hrutovic, and who later called themselves of "Huzová", built a castle in Sovinec in the years 1329–32 to mark the border of their territory. Even in the first half of the 14th century the Sovinec dynasty translated its name into the equivalent German Eulenburg, they remained the same ancient moravian branch of the Czech Hurtovic dynasty with their own insignia. From the second half of the 14th century they used either their German or their Czech name, and the latter prevailed since the 15th century.

According to Ctibor Tovačovský of Cimburk's legal work, the lords of Sovinec belonged to the 15 oldest Moravian ruling families such as the Boskovics, the Cimburks, and the Pernštejns. They had privilleged status over all the other ruling families in the area, held the highest positions and took part in all important issues. As a proof of this might, the signature and seal of Petr of Sovinec is visible on the protest letter which Czech and Moravian noblemen wrote in the occasion of the burning of Jan Hus. Sovinec was also an important Hussite, stronghold which endangered even catholic Olomouc. And it is not by chance that Sovinec was chosen as the meeting place for the important political discussions between Prokop Holý, leader of the Hussite army and Zikmund Korybutovič, a candidate for the Czech throne. The lords of Sovinec were strong supporters of the King Jiří z Poděbrady, famous for his attempts at uniting all European monarchs, in his efforts to include Silesia in his project. Due to their political activity, Mathias Corvinus destroyed the lands of the Sovinec dynasty in August 1474. As testified in 1490 in the Land Codex in the second half of the 15th century, Sovinec was the centre of a strong and united rule consisting of one city and 18 villages, ranging from Paseka in the plains through nearby Rýmařov to Štáhly (Malá Štáhle and Velká Štáhle) on the mountains. The watchtower of the Sovinec castle dates back to this era, and one can still see the Sovinec insignia engraved in its stone. The walls of the fortified village of Sovinec also dates back to that time.