Hunyadi family
King Sigismund, Holy Roman Emperor, as part of a treaty with Serbian ruler Stefan Lazarević, gave him the opportunity to rule Debrecen in September 1411. A year after Lazarević's death in 1426, his role was taken over by his successor, Đurađ Branković. Between 1450 and 1507, it was a domain of the Hunyadi family.