Agnolo Bronzino's portrait of an unidentified young man, painted in the 1530s at the height of his activity for the Medici court, displays the cool, enamel-smooth finish and psychologically withholding expression that made him the defining portraitist of Mannerist Florence. The sitter's pose and dress — one hand resting on a marble ledge, sober black costume against a shallow, undefined space — follow a courtly formula Bronzino refined across dozens of commissions. Oil on wood panel, the work entered the collection through the H. O. Havemeyer bequest of 1929, part of a collection built with considerable connoisseurial rigor. Scion draws a direct line between that rigor and its own practice: a great collection is assembled one soundly attributed, well-documented picture at a time.