Bronzino's work tends to include sophisticated references to earlier painters, as in one of his last grand frescoes called "The Martyrdom of St. Lawrence" (San Lorenzo, 1569), in which almost every one of the extraordinarily contorted poses can be traced back to Raphael or to Michelangelo, whom Bronzino idolized (cf. Brock). Bronzino's skill with the nude was even more enigmatically deployed in the celebrated "Venus, Cupid, Folly and Time", which conveys strong feelings of eroticism under the pretext of a moralizing allegory. His other major works include the design of a series of tapestries on "The Story of Joseph", for the Palazzo Vecchio.