The new king Charles II of Naples moved with his family and the court to the new residence, which he enlarged and embellished. During his reign the Holy See was particularly linked to the House of Anjou, in a turbulent relationship, which also in the following years will be marked by pressure, alliances and continuous ruptures. On December 13 of 1294 the Main Hall of the Castel Nuovo was the scene of the famous abdication of Pope Celestine V (the hermit Pietro da Morrone), from the papal throne, called by Dante Alighieri "the great refusal" and the following December 24, in the same hall the board of cardinals elected Benedetto Caetani, who assumed the name of Pope Boniface VIII and immediately moved its headquarters to Rome to avoid the interference of the Anjevin family.