A Brāhman discovered by Bhīshma, Son of a Brahmana named Bharadwāja; married a sister of Kripa and a son Aswathama was born to them; learnt military art from Parasurama, the maser. Later he became the instructor to the Kaurava and Pandava princes in the use of arms. He was slain by Dhrishtadyumna in Mahabharata war.
In the epic Mahābhārata, Drona (Sanskrit: droṇa) or Dronacharya (Sanskrit: droṇācārya) was the royal guru to Kauravas and Pandavas. He was a master of advanced military arts, including the divine weapons or Divya Astras. Arjuna was his favorite student. Aśhvatthāma, another major combatant in the Kurukshetra war, is the son of Drona. He is the avatar of Bṛihaspati.