The terracotta bust of a young 'Deacon saint' in the Old Sacristy of San Lorenzo in Florence – believed to be by Donatello from the 18th century until 1957-1958, and then almost unanimously attributed to the later activity of Desiderio da Settignano (ca. 1455-1460) – has always posed, and still does, an iconographical dilemma. It is in fact not immediately recognizable either as a 'Saint Lawrence' (i.e. the traditional identification, with which it certainly deserved to be received in the Old Sacristy at the beginning of the 16th century at the latest), or as a 'Saint Leonard' (an alternative mentioned in some of the Sacristy's old inventories and reproposed by canon Domenico Moreni in 1817), but rather as the portrait of a man of Church contemporary to the sculptor.
In 1462 Desiderio was paid for a “head” of Prince James of Portugal, cardinal deacon of Sant'Eustachio, who had died in Florence in 1459 at the age of twenty-five and was buried in the celebrated chapel named after him in the basilica of San Miniato al Monte. The payment of two    fiorini larghi made to the sculptor corresponds to the value that in 1459 had been assigned to a lost terracotta bust of the 'Redeemer' by his hand.
This paper shows that the “head” of James of Portugal has all the requisites for being the bust of the Old Sacristy, easily becoming a 'Saint Lawrence' on its entry into that church, which has thus conserved it as such until present times.								
                                    
									
										
											published in
											
											
											
											Italiano
											pp. 47-59
											
											
											
											
									
										 
									 
								
								
							 
						 
			
						
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