his political influence in this region is attested to by the use of the Gupta era in an inscription found at Shorkot, and by some coins bearing the name "Chandragupta". However, there is no evidence that Chandragupta annexed Punjab to the Gupta Empire, which suggests that Chandragupta's victory in this region was not a decisive one. There is little evidence of Gupta influence in Punjab after his reign: numismatic evidence suggests that Punjab was ruled by petty chieftains after his death. These chieftains bore Indian names, but issued coins that imitate the Kidarite coinage: they may have been Hinduized foreigners or Indians continuing the usage of foreign-style coinage. Bengal region The identification of Chandra with Chandragupta II also suggests Chandragupta achieved victories in the Vanga area in the present-day Bengal region. According to the Allahabad Pillar inscription of his father Samudragupta, the Samatata kingdom of the Bengal region was a Gupta tributary. The Guptas are known to have been ruling Bengal in the early 6th century, although there are no surviving records of the Gupta presence in this region for the intervening period. It is possible that a large part of the Bengal region was annexed to the Gupta empire by Chandragupta, and that this control continued into the 6th century. The Delhi iron pillar inscription suggests that an alliance of semi-independent chiefs of Bengal unsuccessfully resisted Chandragupta's attempts to extend the Gupta influence in this region. Personal life and matrimonial alliances Gupta records mention Dhruvadevi as Chandragupta's queen, and the mother of his successor Kumaragupta I. The Basarh clay seal mentions Dhruva-svamini as a queen of Chandragupta, and the mother of Govindagupta. It is unlikely that Chandragupta had two different queens with similar names: it appears that Dhruvasvamini was most probably another name for Dhruvadevi, and that Govindagupta was a real brother of Kumaragupta. Chandragupta also married Kuvera-naga (alias Kuberanaga), whose name indicates that she was a princess of the Naga dynasty, which held considerable power in central India before Samudragupta subjugated them. This matrimonial alliance may have helped Chandragupta consolidate the Gupta empire, and the Nagas may have helped him in his war against the Western Kshatrapas. Prabhavati-gupta, the daughter of Chandragupta and Kuvera-naga, married the Vakataka king Rudrasena II, who ruled in the Deccan region to the south of the Gupta empire. After her husband's death in c. 390, Prabhavati-gupta acted as a regent for her minor