Bimbisara
Bimbisara (c. 558 – c. 491 BC) or Srenika was a King of Magadha (r. 542 – 492 BC) and belonged to the Haryanka dynasty. He was the son of Bhattiya. His expansion of the kingdom, especially his annexation of the kingdom of Anga to the east, is considered to have laid the foundations for the later expansion of the Maurya Empire.
He is also known for his cultural achievements and was a great friend and protector of the Buddha. Bimbisara built the city of Rajgir, famous in Buddhist writings. He was succeeded on the throne by his son Ajatashatru.
Biography
Bimbisara's first capital was at Girivraja (identified with Rajagriha). He led a military campaign against Anga, perhaps to avenge his father's earlier defeat at the hands of its king, Brahmadatta. The campaign was successful, Anga was annexed, and prince Kunika (Ajatashatru) was appointed governor at Champa.
Marriage alliances
Bimbisara used marriage alliances to strengthen his position. His first wife was Kosala Devi, the daughter of Mahā Kosala the king of Kosala, and a sister of Prasenjit. His bride brought him Kashi, which was then a mere village, as dowry. This marriage also ended the hostility between Magadha and Kosala and gave him a free hand in dealing with the other states. His second wife, Chellana, was a Lichchhavi princess from Vaishali and daughter of King Chetaka. As per Indologist Hermann Jacobi, Vardhaman Mahavira's mother Trishala was sister of Chetaka. His third wife, Kshema, was a daughter of the chief of the Madra clan of Punjab. These marriage alliances paved the way for the expansion of Magadha Empire both westward and northward.