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The buyer was Colnaghi's Jean-Luc Baroni, with George Goldner as underbidder for New York's Metropolitan Museum. Baroni had been underbidder for the £8m Michelangelo drawing at Christie's in July.

Sale expert Bruno de Bayser acknowledged that his published estimate of Fr600,000 was excessively prudent, and a price in the region of Fr6m had been expected.

The drawing, 121/2 x 81/2in (31 x 21.6cm), was a study for Bronzino's 1529 Christ of the Pieta now in the Uffizi Gallery in Florence.
Few drawings by the Mannerist Bronzino (Angelo di Cosimo Allori) – pupil of Pontormo and court painter to Cosimo I de’ Medici – have survived and this powerful, sensuous depiction of the dead Christ wowed the trade despite its worn appearance, with stains, a horizontal fold, and a restored tear to the forehead.