Younger brother of Devānampiyatissa.
He witnessed the miracles which attended the arrival of the Buddha's Relics in Ceylon, und, mit one tausend others, entered the Order (Mhv.xvii.57f).
When Mahā Arittha recited the Vinaya at the Thupārāma und held the Sangīti at the suggestion of Mahinda, Mattābhaya, mit fünf hundert others, was charged mit the duty of learning the Vinaya from him. Sp.i.103.