Dharmapala of Bengal

Dharmapala was mentioned as the King of Vangala (Vangapati) in the Nesari plates (dated 805 AD) of Rashtrakuta dynasty.

[5] 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.

[6] Since the extent of Gopala's kingdom is not known, it is uncertain if Dharmapala inherited these territories or acquired them through conquests.

According to the Khalimpur copper plate issued by Dharmapala, this court was attended by the rulers of Bhoja (possibly Vidarbha), Matsya (Jaipur and north-east Rajasthan), Madra (East Punjab), Kuru (Haryana-Delhi-Western UP region), Yadu (possibly Mathura, Dwarka or Siṁhapura in the Punjab (Katas Raj Temples)), Yavana, Avanti, Gandhara and Kira (Kangra Valley).

[8][9] These kings accepted the installation of Chakrayudha on the Kannauj throne, while "bowing down respectfully with their diadems trembling".

[10] This indicates that his position as a sovereign was accepted by most rulers, although this was a loose arrangement unlike the empire of the Mauryas or the Guptas.

[16] Dharmapala built the great Somapura Mahavihara in Paharpur, Naogaon District, Bangladesh.

[6] Buton Rinchen Drub credits Dharmapala with building the monastery at Uddandapura (Odantapuri), although other Tibetan accounts such as that of Taranatha, state that it was magically built and then entrusted to Devapala.

Somapura Mahavihara is the largest Buddhist vihara in the Indian subcontinent built by Dharmapala in Naogaon District , Bangladesh ; it became a World Heritage Site in 1985.
Keśava Praśasti
Khalimpur Copper Plate