Michelangelo di Lodovico Buonarroti Simoni ( 6 March 1475 â `` 18 February 1564 ) , known as Michelangelo , was an Italian Renaissance painter , sculptor , architect , poet , and engineer . Michelangelo di Lodovico Buonarroti Simoni ( 6 March 1475 â `` 18 February 1564 ) , commonly known as Michelangelo , was an Italian Renaissance painter , sculptor , architect , poet , and engineer .