The princes of Transylvania would have gladly followed the example of Bocskai, who settled the hajdú soldiers, but they did not have significant land available for donation. Therefore, the hajdús who undertook princely service received various and different privileges. In 1653, the Transylvanian collection of laws included 20 hajdú settlements from Bihar. However, 40% of these do not have known privilege letters. Körösszeg was among these, despite being owned by the Csáky family throughout the century. György Rákóczi I considered the Catholic István Csáky an enemy of Transylvania. He took away his castle and estate, which he got back under the terms of the Agreement of Eperjes (1633), but both the castle and the hajdús living in the market town had to serve Varad, and only served as soldiers for the landowner during peacetime. The hajdús were under the jurisdiction of their lieutenant, who was accountable to the captain of Varad but was also supposed to work in agreement with the estate's court judge. The Transylvanian code of law intended to modify this peculiar dual service to a hajdú privilege, but the Csáky family contradicted this decision in 1654. In 1659, their court judge allowed only those who agreed to serve the lord to return to the market town and also put down the hajdú name. After the siege of Varad in 1660, the destroyed castle was not rebuilt, and the settlement remained deserted.