(Μέλαγχρος; Mélanchros) was able to establish himself as tyrant during the internal conflicts in Mytilene around 600 BC, probably with the support of a hetairia . Another of these aristocratic groups, to which Pittacus and the brothers of the poet Alcaeus  belonged, however, soon managed to overthrow him again (Alc. fr. 331 Voigt; Strab. 13,2,3; Diog. Laert. 1,74).
H. Berve, Die Tyrannis bei den Griechen, 1967, vol. 1, 91f., vol. 2, 572
L. de Libero, Die archaische Tyrannis, 1996, 315.