1389-1464 1494-approximately1556 16thcentury agnolo artpatronagemedici bronzino cappelladieleonora(palazzovecchio cappelladieleonora(palazzovecchio) conservationandrestoration cosimode' criticismandinterpretationbronzino exhibitions florence houseof italian italy italy) jacopocarucci paintings pennsylvania philadelphia pontormo portraitpainting portraits renaissance