Here is my post from 2013 :
Pontormo had a dual role in the history of art.
On one hand, his mythological and biblical works are at the origin of the mannerism with which the expression of the feelings supersede the realism of the attitudes.
On the other hand, he was lucky to be the most appreciated portrait painter to the court of Florence at a brilliant intellectual time when customers requiring for art were expanding beyond the ruling family.
In 1989 at Christie's, J. Paul Getty Museum purchased for $ 35M including premium the portrait of a halberdier, realized between 1528 and 1530 by Pontormo, which is still one of the highest prices recorded at auction for an ancient painting.
The portrait of a young writer has just resurfaced. This oil on panel, 94 x 78 cm, was described in 1842 in the collections of Palazzo Corsini. Its importance was not identified at that time and it was later known through a copy which was sufficient to state that it was not a work by Pontormo.
Its direct scrutiny now attributes it firmly to Agnolo Bronzino when he was a pupil of Pontormo. Vasari had already acknowledged the difficulty of separating the works of both artists and the fast and neat skill of the pupil. This observation is in good agreement with the very thin painting layer of our portrait of a writer.
The experts were able to identify the probable date of the work in comparison with other paintings by Bronzino : between 1525 and 1527.
I invite you to play the audio shared in 2013 by Christie's :