The image of Castellote, a town lying on a steep slope and crowned by the figure of the castle, is the very image of the Carlist resistance in Maestrazgo. Its castle was the strong point of the Carlist frontier in its northern part. This was the main obstacle that the liberal armies had to overcome in 1840 before launching the definitive assault on Morella. Gateway between Lower Aragon and Maestrazgo, the possession of this fortified enclave assured Cabrera the control of a large territory.