[Dharasena IV. A.D. 640-649.] Dhruvasena II. was succeeded by his son Dharasena IV. perhaps the most powerful and independent of the Valabhis. A copperplate dated A.D. 649 (G. 330) styles him Parama-bhattáraka, Mahárájádhirája, Paramesvara, Chakravartin Great Lord, King of Kings, Great Ruler, Universal Sovereign. Dharasena IV.'s successors continue the title of Mahárájádhirája or great ruler, but none is called Chakravartin or universal sovereign a title which implies numerous conquests and widespread power. Two of Dharasena IV.'s grants remain, one dated A.D. 645 (G. 326) the other A.D. 649 (G. 330). A grant of his father Dhruvasena dated A.D. 634 (G. 315) and an unpublished copperplate in the possession of the chief of Morbí belonging to his successor Dhruvasena III. dated A.D. 651 (G. 332) prove that Dharasena's reign did not last more than seventeen years. The well known Sanskrit poem Bhattikávya seems to have been composed in the reign of this king as at the end of his work the author says it was written at Valabhi protected (governed) by the king the illustrious Dharasena. [303] The author's application to Dharasena of the title Narendra Lord of Men is a further proof of his great power. [Dhruvasena III. A.D. 650-656.] Dharasena IV. was not succeeded by his son but by Dhruvasena the son of Derabhata the son of Dharasena IV.'s paternal grand-uncle. Derabhata appears not to have been ruler of Valabhi itself but of some district in the south of the Valabhi territory. His epithets describe him as like the royal sage Agastya spreading to the south, and as the lord of the earth which has for its two breasts the Sahya and Vindhya hills. This description may apply to part of the province south of Kaira where the Sahyádri and Vindhya mountains may be said to unite. In the absence of a male heir in the direct line, Derabhata's son Dhruvasena appears to have succeeded to the throne of Valabhi. The only known copperplate of Dhruvasena III.'s, dated A.D. 651 (G. 332), records the grant of the village of Pedhapadra in Vanthali, the modern Vanthali in the Navánagar State of North Káthiáváda. A copperplate of his elder brother and successor Kharagraha dated A.D. 656 (G. 337) shows that Dhruvasena's reign cannot have lasted over six years. [Kharagraha, A.D. 656-665.] The less than usually complimentary and respectful reference to Dhruvasena III. in the attributes of Kharagraha suggests that Kharagraha took the kingdom by force from his younger brother as the rightful successor of his father. At all events the succession of Kharagraha to Dhruvasena was not in the usual peaceful manner. Kharagraha's grant dated A.D. 656 (G. 337) is written by the Divirapati or Chief Secretary and minister of peace and war Anahilla son of Skandabhata. [304] The Dútaka or causer of the gift was the Pramátri or survey officer Sríná.