Sahadeva was the youngest of the five Pandava brothers in the ancient Indian epic, the Mahabharata. He and his twin brother Nakula were the sons of Madri, one of the wives of the Pandava patriarch Pandu, and Ashvini Kumaras, the divine twin physicians of the gods, whom she invoked to beget her sons due to Pandu's inability to progenate. Kunti, Sahadeva's step-mother, loved him the most despite his birth to Madri. Sahadeva is renowned for his wisdom, knowledge of astrology, and skill in swordsmanship.

Madra Kingdom was a kingdom grouped among the western kingdoms in the epic Mahabharata. Its capital was Sagala in Madra region, modern Sialkot in the Punjab province of Pakistan. The Kuru king Pandu's (Pāṇḍu) second wife was from Madra kingdom and was called Madri. The Pandava twins, Nakula and Sahadeva, were her sons. Madri's brother Shalya was the king of Madra. Though affectionate to the Pandavas, he was tricked to give support to Duryodhana and fought against the Pandavas during the Kurukshetra War. He was killed by Yudhishthira, the eldest Pandava. Other than the Madra kingdom with Sagala as its capital, it is believed that there was a Western Madra and a Northern Madra.