Louis's staff is ornamented with miniature putti, or spiritelli, the Renaissance "spirits" based on ancient Roman cupids among the many on view are marble versions, a whole flock at play on a 2nd-century child's sarcophagus and one gleefully ready for mid-15th-century fountain duty.
WSJ: Review: The Flowering of the Florentine Renaissance | 'Springtime of the Renaissance: Sculpture and the Arts in Florence 1400�C1460,' at the Palazzo Strozzi in Florence