A general of Gajabāhu who defeated Kittisirimegha; he had his headquarters in Kālavāpi, of which place he was Nagaragiri. At a meeting between him and Parakkamabāhu at Buddhagāma, the latter won him over to his side. An amusing story is told of a dream he had after his promise of help to Parakkamabāhu (Cv.lxvi.47 ff). He fled, therefore, to Kālavāpi and, on various occasions, offered battle to the forces of Parakkamabāhu, but everywhere he was defeated, the worst reverse being at Nīlagala by the general Māyāgeha. After that he built a fortification in Kālavāpi, where he lived in comparative quiet. The last we hear of him is of his incitement of Mānābharaṇa to seize the throne (Cv.lxiii.34; lxvi.35 ff, 62; lxx.68, 71, 83, 257). Geiger thinks (Cv. Trs i.255, n.3) that Gokaṇṇa is probably a clan name.