Bernardo del Carpio was similarly celebrated in Spanish song, though he attained no such worldwide fame. History does not name him at all, but the ballads of Spain say much of his warlike deeds. It must suffice here to say that this doughty champion marched upon Roland and his men while they were winding through the narrow mountain-pass, and as they advanced the mountaineers swelled their ranks. "As through the glen his spears did gleam, the soldiers from the hills, They swelled his host, as mountain-stream receives the roaring rills; They round his banner flocked in scorn of haughty Charlemagne, And thus upon their swords are sworn the faithful sons of Spain." Roland and his force lay silent in death when the valiant prince led back his army, flushed with victory, and hailed with the plaudits of all the people of the land. At this moment of his highest triumph the tragedy of his life began. His old nurse, who had feared before to tell the tale, now made him acquainted with the true story of his birth, telling him that he was the nephew, not the son, of the king; that his mother, whom he thought long dead, still lived, shut up for life in a convent; and that his father lay languishing in a dungeon cell, blind and in chains. As may well be imagined, this story filled the soul of the young hero with righteous wrath. He strode into the presence of the king and asked, with little reverence, if the story were true. Alfonso surlily admitted it. Bernardo then demanded his father’s freedom. This the king refused. Burning with anger, the valiant youth shut himself up in his castle, refusing to take part in the rejoicings that followed the victory, and still sternly demanding the release of his father. "Is it well that I should be abroad fighting thy battles," he asked the king, "while my father lies fettered in thy dungeons? Set him free and I shall ask no further reward." Alfonso, who was obstinate in his cruelty, refused, and the indignant prince took arms against him, joining the Moors, whom he aided to harry the king’s dominions. Fortifying his castle, and gathering a bold and daring band from his late followers, he made incursions deep into the country of the king, plundering hamlet and city and fighting in the ranks of the Moslems. This method of argument was too forcible even for the obstinacy of Alfonso. His counsellors, finding the kingdom itself in danger, urged him to grant Bernardo’s request, and to yield him his father in return for his castle. The king at length consented, and Bernardo, as generous and trusting as he was brave, immediately accepted the proposed exchange, sought the king, handed him the keys of his castle, and asked him to fulfil his share of the contract.