The birth of the barony of Híjar Historical milestone · Híjar, Bajo Martín, Teruel Image of Híjar, not of the place itself. In 1268 James I handed his natural son Pedro Fernández half of the castle of Híjar, the founding act of the barony. The resulting lineage governed for centuries much of the Bajo Martín and the Bajo Aragón of Teruel. 1268 Photo: Juan Emilio Prades Bel (CC BY 4.0) What to see and do in Híjar