Attributed to Daniele da Volterra (Italian, Volterra 1509–1566 Rome) Title: Michelangelo Buonarroti (1475–1564) Date: probably ca. 1545 , Medium: Oil on wood Dimensions: 34 3/4 x 25 1/4 in. (88.3 x 64.1 cm) Classification: Paintings This unfinished portrait has been identified as the work of…