"On 24 and 25 June 2013, an International Congress entitled "Il San Giovannino di Úbeda Restituito" was held in Florence, dedicated to the presentation of the restoration of a child Saint John the Baptist from the Sacra Capilla del Salvador in Úbeda, which was destroyed in 1936. The preserved fragments were deposited in 1994 and 1995 by the Ducal House of Medinaceli Foundation for restoration at the Opificio delle Pietre Dure, a prestigious restoration institute whose origins date back to 1588. The Congress not only served to analyse and explain the restoration criteria applied to the complex physical restitution of this sculpture, criteria whose establishment has involved almost two decades of patient research to bring them into line with the most demanding international restoration parameters, but also meant, at the same time, the recovery of Michelangelo's authorship through its identification with the San Giovannino mediceo sculpted between 1495 and 1496. After one hundred and fifty years of unsuccessful attributions, international historiography had considered this piece irretrievably lost almost half a century ago. This is the rediscovery of a piece that is an essential link in understanding the maturation process of the greatest genius of universal sculpture".
