Leo (constellation) thus, the warriors' clubs, swords, and spears were rendered useless against it. Realizing that he must defeat the Lion with his bare hands, Hercules slipped into the Lion's cave and engaged it at close quarters. When the Lion pounced, Hercules caught it in midair, one hand grasping the Lion's forelegs and the other its hind legs, and bent it backwards, breaking its back and freeing the trapped maidens. Zeus commemorated this labor by placing the Lion in the sky. The Roman poet Ovid called it "Herculeus Leo" and "Violentus Leo". "Bacchi Sidus" (star of Bacchus) was another of its titles,
Leo the Mathematician from the caliph to the Byzantine emperor Theophilos, who, impressed by his international repute, conferred on him a school ("ekpaideutērion") in either the Magnaura or the church of the Forty Martyrs. In the version of the story recorded by Theophanes Continuatus, the caliph, upon receiving Leo's letter of refusal, sent a letter requesting answers to some difficult questions of geometry and astrology, which Leo obliged. Al-Mamun then offered two thousands pounds of gold and a perpetual peace to Theophilos, if only he could borrow Leo's services briefly; the request was declined. The emperor then honoured Leo by having John the