Stibor of Stiboricz and his son, Stibor of Beckov, were both members of the Order of the Dragon. Ī line of the clan which included relatives of Stibor of Stiboricz who followed him to Hungary was included in Hungarian aristocracy as Imperial Barons (Reich freiherr) of the Hungarian kingdom in 1389. Members of clan Ostoja ruled several feudal lordships in Upper Hungary between 13 and Transylvania in 1395-1401 and again in 1410–1414, during the time of Duke Stibor of Stiboricz. They held high positions, and held a great amount of land and properties in the Commonwealth and in Upper Hungary (today mostly present-day Slovakia) in medieval times, including many great gothic castles. Members of the clan worked together closely, often living close to each other. The clan, of Alan origin, adopted the Royal-Sarmatian tamga draco ( dragon) emblem.ĭuring the Polish–Lithuanian Commonwealth, the clan adopted several Lithuanian families, generally of Ruthenian princely origin, and transformed into a clan of landlords, senators and nobility. The clan crest is the Ostoja coat of arms, and the battle cry is Ostoja ("Mainstay") or Hostoja ("Prevail"). The clan encompassed families in the Polish–Lithuanian Commonwealth (including present-day Belarus and Ukraine), Hungary and Upper Hungary (now Slovakia), Transylvania, and Prussia.
Clan Ostoja (old Polish: Ostoya) was a powerful group of knights and lords in late-medieval Europe.