He was the son of the king of Kosala, and, having witnessed the Buddha’s majesty at the consecration of Jetavana, he entered the Order and in due course became an Arahant. One day, while going for alms, he was abused by a brahmin, but kept silence. Again and again the brahmin abused him, and the people marvelled at the patience of Brahmadatta, who then taught them on the wisdom of not returning abuse for abuse. The brahmin was much moved and entered the Order under Brahmadatta. Thag. vs. 441-6; ThagA.i.460 ff.