Leo, the Lion, is Lion in France, Lowe in Germany, and Leone in Italy. In Anglo-Norman times it was Leun. It lies between Cancer and Virgo, the bright Denebola 5° north of the faint stars that mark the head of the latter constellation; but Ptolemy extended it to include among its … the group now Coma Berenices.
In Greek and Roman myth this was respectively Leon and Leo, representing the Nemean Lion, originally from the moon, and, after his earthly stay, carried back to the heavens with his slayer Hercules, where he became the poet's Nemeaeus; Nemeas Alumnus; Nemees Terror; Nemeaeum Monstrum; and, in later times, No Animal Nemaeo truculento of Camoes. It also was Cleonaeum Sidus, from Cleonae, the Argolic town near the Nemean forest where Hercules slew the creature; Herculeus; and Herculeum Astrum. But the Romans commonly knew it as Leo, Ovid writing Herculeus Leo and Violentus Leo.