King of Sri Lanka (29‑17 B.C.) He was the son of Saddhā Tissa, and came to the throne by killing the usurper Mahārattaka (v.l. Kammahārattaka).
He married Anulā, wife of Khallātanāga, and adopted Mahācūlika as his own son; because of this Vaṭṭagāmaṇī came to be known as Pitirājā (this name occurs several times in the Commentaries — e.g., VibhA. passim, see Pitirājā).
Vaṭṭagāmaṇī had a second wife, Somadevī, and also a son of his own, called Coranāga. In the fifth month of his reign a brahmin, named Tissa, rose against him, but was defeated by seven Damiḷā who landed at Mahātittha. After that, the Damiḷā waged war against the king and defeated him at Kolambālaka. It was a remark made by the Nigantha Giri to Vaṭṭagāmaṇī, as he fled from the battle, that led later to the establishment of Abhayagiri (q.v.) The king hid in the forest in Vessagiri and was rescued by Kupikkala Mahātissa, who gave him over to the care of Tanasīva. In his flight he left Somadevī behind, and she was captured by the Damiḷā.
For fourteen years Vaṭṭagāmaṇī and his queen Anulā lived under the protection of Tanasīva, and, during this time, five Damiḷā ruled in succession at Anurādhapura; they were Pulahattha, Bāhiya, Panayamāra, Pilayamāra and Dāthika.
After a time, Anulā quarrelled with Tanasīva’s wife, and the king, in his resentment, killed Tanasīva. Later, when he also killed Kapisīsa, his ministers left him in disgust, but were persuaded by Mahātissa to return. When his preparations were complete, the king attacked Dāthika, slew him, and took the throne. He then founded Abhayagiri-
It was in the reign of Vaṭṭagāmaṇī that the Buddhist Canon and its Commentaries were first reduced to writing in Sri Lanka, according to tradition, in Aloka-