One of the five daughters of the chief queen of the king of the third Okkāka dynasty (DA.i.258: SnA.i.352).
The Mahāvamsa Tīkā (p.84) says that Okkāka was the youngest of the sixteen kings of the Mahāsammata dynasty and makes no mention of three Okkāka dynasties.
The name of Okkāka's chief queen was Hatthā (v.l. Bhattā).