Short answer: Florence’s Bargello held a marble faun attributed to Michelangelo. It was moved to the Castello di Poppi for protection during the Second World War. German troops removed it with other artworks in August 1944. No confirmed trace of it has been found since.
Was it certainly Michelangelo’s first sculpture?
No. The famous story comes from early biographies of Michelangelo. They say that the young artist copied an antique faun and changed its expression. He then removed a tooth after Lorenzo de’ Medici remarked that an old faun would not have a full set. The episode is said to have brought Michelangelo to Lorenzo’s attention.
The wartime object was attributed to Michelangelo. That wording matters. It represents expert judgement rather than absolute proof. Modern accounts often call it the Mask of a Faun or Head of a Faun attributed to Michelangelo.
What do we know about its disappearance?
The sculpture was one of many works moved out of Florence for safekeeping. Records gathered by the Monuments Men and Women Foundation place it at Poppi. German forces removed it in late August 1944. The later transport trail did not reveal where it ended up.
Could it still survive?
It might, but there is no public evidence to show whether it survived the war. A cast preserves the appearance of the missing piece. It is not the lost marble itself. Any future claim to have found the original would need a convincing ownership history and expert examination.
How the mystery enters the novel
Tianna and Michelangelo’s Mask of a Faun builds a fictional investigation around the real disappearance. The modern characters and coded evidence are fictional. The missing artwork and its wartime history are real.
Sources and further reading
These links document the historical record and the questions that remain open.