The Cambridge History of India, Vol. I: Ancient India v1.c31.30

v1.c31.30

The assumption of the imperial title, 'King of Kings,' by these Çaka and Pahlava suzerains is most significant as testifying, in a manner which cannot be mistaken, to the diminished power of Parthia at this period. In Parthia itself the title remained in abeyance during the interval from 88 to 57 B.C. which separates the reigns of Mithradates II and III; and in the meantime it was assumed not only by the Çaka king Maues in the East, but also, in the years 77–73, by Tigranes, king of Armenia, the great rival of Parthia in the West¹.