Another holder of the village was Hroznata - later the founder of the Teplá monastery - who gave it together with other estates to the Order of the Knights of St. John; later Třebušín belonged to the command of the Order of the German Knights. In 1422, Emperor Sigismund pledged the goods of the Bílčkovice Commandery, which included Třebušín, to Sigismund of Vartemberk. However, the real applicability of the pledge was problematic, as the region was then ruled by the Hussite warlord Jan Žižka of Trocnov, who even built the Kalich Castle on the hill above Třebušín. In those times, Třebušín was one of the most important Hussite bases ever. The Vartemberks are reliably mentioned as the holders of Třebušín only from 1496. From 1540 the village belonged to the Dubanskis of Duban and after them, from 1578, to the Hostákovskis of Arklebice, who built a new fortress here - later a chateau. Today, the Baroque building, which contains Renaissance structures in the mass of its cellars and the ground floor of the northern wing, is one of the most valuable local monuments. These include the originally Romanesque parish church of St. Nicholas, first mentioned in 1384 and rebuilt in the Baroque style after 1710, the statue of St. John of Nepomuk and Žižek's Kalich Castle, the remains of which can still be seen on the high hill above the village.
Village Trebusin
The first mention of Třebušín dates back to 1169, when Bleh of Třebušín (Bleh de Trebussen) is mentioned. He was sitting in the fortress that stood next to the church.