Who invented Othello?

Shakespeare invented a new character, Roderigo, who pursues the Moor's wife and is killed while trying to murder the captain. Unlike Othello, the Moor in Cinthio's story never repents the murder of his beloved, and both he and the standard-bearer escape Venice and are killed much later. Cinthio also drew a moral (which he placed in the mouth of the lady) that European women are unwise to marry the temperamental males of other nations.