Hajdúdorog is one of the socalled "Hajdú towns". The prerogatives of the town were registered in the prerogative letter of István Bocskai (1605) The Hajdú people had not yet occupied the town, but a document (dated 1605) of György Thurzó gives evidence of the presence of the Hajdú people in the region. Ferdinand II and Lipót I later renewed and arranged the privileges of the Hajdús.