King of Kosala.
He was the father of Pasenadi, and his daughter, Kosaladevī, was given in marriage to Bimbisāra, who received a village in Kāsi for her bath money.
(J.ii.237, 403; iv.342; SA.i.120, etc.).
Aggīdatta was the purohita of Mahākosala.
DhA.iii.241.