Together, Harpagus and Cyrus convinced the Persians to follow Cyrus, rather than Astyges. Cyrus took power away from his grandfather and became the ruler of the Persians, just as Astyges had dreamed, so many years ago. And then he led the Persians in a war against the great empire of Media. After three years of fierce fighting, Cyrus conquered the king of Media as well. Now Cyrus, who had been raised by a shepherd on a mountain, ruled over the combined empires of the Medes and the Persians.