Several gold coins of Chandragupta show a young male figure behind the king with his right hand laid on the king's shoulder. This youthful figure is apparently Chandragupta's son Kumáragupta who may have acted as Yuvarája during the conquest of Málwa. The rareness of Chandragupta's and the commonness of Kumáragupta's coins in Káthiáváda, together with the date 90 (A.D. 409) on some of Kumáragupta's coins make it probable that on their conquest his father appointed Kumáragupta viceroy of Gujarát and Káthiáváda. As the first Gupta was a chief of no great power or influence it is probable that though it is calculated from him the Gupta era was established not by him but by his grandson the great Chandragupta II. [198] This view is confirmed by the absence of dates on all existing coins of Chandragupta's father Samudragupta. It further seems probable that like the Málavas in B.C. 57 and the Kshatrapas in A.D. 78 the occasion on which Chandragupta established the Gupta era was his conquest of Málwa. The Gupta era did not remain long in use. After the fall of Gupta power (A.D. 470) the old Málava era of B.C. 57 was revived. The conjecture may be offered that, in spite of the passing away of Gupta power, under his title of Vikramáditya, the fame of the great Gupta conqueror Chandragupta II. lived on in Málwa and that, drawing to itself tales of earlier local champions, the name Vikramáditya came to be considered the name of the founder of the Málava era. [199] Working back from Gupta Samvat 80 (A.D. 400) the date of Chandragupta's conquest of Málwa we may allot 1 to 12 (A.D. 319-332) to the founder Gupta: 12 to 29 (A.D. 332-349) to Gupta's son Ghatotkacha: 29 to 49 (A.D. 349-369) to Ghatotkacha's son Chandragupta I.: and 50 to 75 (A.D. 370-395) to Chandragupta's powerful son Samudragupta who probably had a long reign. As the latest known date of Chandragupta II. is 93 (A.D. 413) and as a Bilsad inscription [200] of his successor Kumáragupta is dated 96 (A.D. 416) the reign of Chandragupta II. may be calculated to have lasted during the twenty years ending 95 (A.D. 415). [Kumáragupta, A.D. 416-453.] Chandragupta II. was succeeded by his son Kumáragupta whose mother was the queen Dhruva-Deví. On Kumáragupta's coins three titles occur: Mahendra, Mahendra-Vikrama, and Mahendráditya. As already noticed the circulation of Kumáragupta's coins in Káthiáváda during his father's reign makes it probable that on their conquest his father appointed him viceroy of Káthiáváda and Gujarát. Kumáragupta appears to have succeeded his father about 96 (A.D. 416). An inscription at Mankuwár near Prayága shows he was ruling as late as 129 (A.D. 449) and a coin of his dated 130 (A.D. 450) adds at least one year to his reign. On the other hand the inscription on the Girnár rock shows that in 137 (A.D. 457) his son Skandagupta was king. It follows that Kumáragupta's reign ended between 130 and 137 (A.D. 450-457) or about 133 (A.D. 453).