was a fusion of five (pancha) janas (tribes). H.C. Raychaudhuri theorized that these five clans were the Krivis, the Turvashas, the Keshins, the Srinjayas, and the Somakas. Each of these clans is known to be associated with one or more princes mentioned in the Vedic texts - the Krivis with Kravya Panchala, the Turvashas with Sona Satrasaha, the Keshins with Keshin Dalbhya, the Srinjayas with Sahadeva Sarnjaya, and the Somakas with Somaka Sahadevya. The names of the last two clans, the Somakas and the Srinjayas, are also mentioned in the Mahabharata and the Puranas. King Drupada, whose daughter Draupadi was married into the Pandavas in the Mahabharata, belonged to the Somaka clan. However, the Mahabharata and the Puranas consider the ruling clan of the northern Panchala as an offshoot of the Bharata clan, identifying Divodasa, Sudas, Srinjaya, Somaka, and Drupada (also called Yajnasena) as its most notable rulers. It is also mentioned that Sutasoma, the son of Draupadi and the Pandava prince Bhima, was the king of the Somaka tribe during the Kurukshetra War. The Panchala kingdom rose to its highest prominence in the aftermath of the decline of the Kuru Kingdom, culminating in its eventual defeat by the non-Vedic Salva tribe. The king of Panchala, Keśin Dālbhya (approximately between 900 and 750 BCE), was the nephew of the Kuru king, who had died heirless; Keśin subsequently took over the leadership, establishing his kingdom as the new political and cultural center, and ensuring the continuation of the Vedic tradition. His dynasty remained in power for many generations; one of his later successors was the philosopher-king Pravahana Jaivali, who was the contemporary of King Janaka of Videha and the philosophers Uddalaka Aruni and Svetaketu (8th–7th centuries BCE). Under Magadhan rule Originally a monarchical clan, the Panchalas appear to have switched to a republican model of government around 500 BCE. The Buddhist text Anguttara Nikaya mentions Panchala as one of the sixteen mahajanapadas of the c. 6th century BCE. The 4th century BCE text Arthashastra also attests the Panchalas as following the Rajashabdopajivin (king consul) constitution. Panchala was annexed into the Magadha empire during the reign of Mahapadma Nanda in the mid-4th century BCE. Post-Mauryan period Numismatic evidence reveals the existence of independent rulers of Panchala during the post-Mauryan period. Most of the coins issued by them are found at Ahichatra and adjoining areas. All the coins are round, made of a