Devapala (Pala dynasty) in the context of Pāla dynasty

The Pāla Empire was the empire ruled by the Pala ("protector" in Prakrit & Sanskrit) dynasty, a medieval Indian dynasty which ruled the kingdom of Gauda. The empire was founded with the election of Gopāla by the chiefs of Gauda in late eighth century CE. The Pala stronghold was located in Bengal and eastern Bihar, which included the major cities of Gauḍa, Vikramapura, Pāṭaliputra, Monghyr, Somapura, Ramavati (Varendra), Tāmralipta and Jagaddala.

The Pālas were astute diplomats and military conquerors. Their army was noted for its vast war elephant corps. Their navy performed both mercantile and defensive roles in the Bay of Bengal. At its zenith under emperors Dharmapala and Devapala in the early ninth century, the Pala empire was the dominant power in the northern Indian subcontinent, with its territory stretching across the Gangetic plain to include some parts of northeastern India, Nepal and Bangladesh. Dharmapala also exerted a strong cultural influence through the Buddhist scholar Atis Dipankar in Tibet, as well as in Southeast Asia. Pala control of North India was ultimately ephemeral, as they struggled with the Gurjara-Pratiharas and the Rashtrakutas for the control of Kannauj and were defeated. After a short-lived decline, Emperor Mahipala I defended imperial bastions in Bengal and Bihar against South Indian Chola invasions. Emperor Ramapala was the last strong Pala ruler, who gained control of Kamarupa and Kalinga. The empire was considerably weakened with many areas engulfed and their heavy dependence on Samantas being exposed through 11th century rebellion. It finally led to the rise of resurgent Hindu Senas as sovereign power in the 12th century and final expulsion of the Palas from Bengal by their hands marking the end of the last major Buddhist imperial power in the subcontinent.

Dharmapala was the second Pala emperor of Bengal (Vangala) in the Indian subcontinent. He was the son and successor of Gopala, the founder of the Pala dynasty. Dharmapala was mentioned as the King of Vangala (Vangala-bhūmipat) in the Nesari plates (dated 805 AD) of Rashtrakuta dynasty. He greatly expanded the boundaries of the empire and made the Palas a dominant power in the northern and eastern India.

Dharmapala directly ruled over the present-day Bengal and Bihar, and installed a nominee at Kannauj. The Pala chronicles also claim that several other rulers of North India acknowledged his suzerainty, but these claims seem to be exaggerated. Dharmapala was defeated twice by the Gurjara-Pratiharas, but each time the Rashtrakutas subsequently defeated the Pratiharas, leaving Palas as the dominant power in North India. Dharmapala was succeeded by his son Devapala who further expanded the empire.