The Cambridge History of India, Vol. I: Ancient India v1.c24.96

v1.c24.96

At different periods Kāçi came under the sway of the three successive suzerain powers of Northern India—the Pūrus of Vatsa, the Ikshvākus of Kosala, and the kings of Magadha; but it seems to have enjoyed its period of independent power in the interval between the decline of Vatsa and the rise of Kosala, when king Brahmadatta, possibly about a century and a half before the Buddha's time, conquered Kosala. The fame of Brahmadatta has been kept alive in Buddhist literature; for in his reign the Jātakas, or stories of the Buddha in previous births, are conventionally set.