Athanagild, having risen against King Agila, called in the Byzantine Greeks and, in payment for the succour they gave him, ceded to them the maritime places of the southeast (554). Liuvigild restored the political unity of the peninsula, subduing the Suebians, but the religious divisions of the country, reaching even the royal family, brought on a civil war. St. Hermengild, the king's son, putting himself at the head of the Catholics, was defeated and taken prisoner, and suffered martyrdom for rejecting communion with the Arians. Reccared, son of Liuvigild and brother of St. Hermengild, added religious unity to the political unity achieved by his father, accepting the Catholic faith in the Third Council of Toledo (589). The religious unity established by this council was the basis of that fusion of Goths with Hispano-Romans which produced the medieval Spanish nation.