Silava Thera was the son of Bimbisara (Thag.vss.608-19), his brother Ajatsatru, wished to kill him, but failed, owing to Sīlavā's destiny. The Buddha, discerning all this, sent Moggallana to fetch Sīlavā. The prince, seeing the Elder, descended from his elephant and did obeisance to the Buddha.
The Buddha preached to him, and he entered the Order, becoming an arahant. He lived in Kosala. Ajatsatru sent men to kill him; but Sīlavā taught them and converted them, and they, too, entered the Order. (ThagA.i.536f)