Note 730 — Chapter LXXX · FROM THE DEATH OF PELOPIDAS TO THE BATTLE OF MANTINEA.
Reading edition
Harpokration v, Κηφισόδωρος, Ephorus ap. Diogen. Laert. ii, 53; Pausan. 1, 3, 4; viii, 9, 8; viii, 11, 5.
There is a confusion, on several points, between this cavalry battle near Mantinea,—and the great or general battle, which speedily followed it, wherein Epaminondas was slain. Gryllus is sometimes said to have been slain in the battle of Mantinea, and even to have killed Epaminondas with his own hand. It would seem as if the picture of Euphranor represented Gryllus in the act of killing the Theban commander; and as if the latter tradition of Athens as well as of Thebes, erroneously bestowed upon that Theban commander the name of Epaminondas.
See this confusion discussed and cleared up, in a good article on the Battle of Mantinea, by Arnold Schäfer, p. 58, 59, in the Rheinisches Museum für Philologie (1846—Fünfter Jahrgang, Erstes Heft).