Sandra's retreat was a sad omen, and soon the family dissensions, long with difficulty suppressed, sprang forth to open view; the storm that had been threatening from afar broke suddenly over the town, and the thunderbolt was shortly to follow.
On the last day of August 1344, Joan rendered homage to Americ, Cardinal of Saint Martin and legate of Clement VI, who looked upon the kingdom of Naples as being a fief of the Church ever since the time when his predecessors had presented it to Charles of Anjou, and overthrown and excommunicated the house of Suabia.

For this solemn ceremony the church of Saint Clara was chosen, the burial-place of Neapolitan kings, and but lately the tomb of the grandfather and father of the young queen, who reposed to right and left of the high altar.

Joan, clad in the royal robe, with the crown upon her head, uttered her oath of fidelity between the hands of the apostolic legate in the presence of her husband, who stood behind her simply as a witness, just like the other princes of the blood.

Among the prelates with their pontifical insignia who formed the brilliant following of the envoy, there stood the Archbishops of Pisa, Bari, Capua, and Brindisi, and the reverend fathers Ugolino, Bishop of Castella, and Philip, Bishop of Cavaillon, chancellor to the queen.

All the nobility of Naples and Hungary were present at this ceremony, which debarred Andre from the throne in a fashion at once formal and striking.
Thus, when they left the church the excited feelings of both parties made a crisis imminent, and such hostile glances, such threatening words were exchanged, that the prince, finding himself too weak to contend against his enemies, wrote the same evening to his mother, telling her that he was about to leave a country where from his infancy upwards he had experienced nothing but deceit and disaster.
Those who know a mother's heart will easily guess that Elizabeth of Poland was no sooner aware of the danger that threatened her son than she travelled to Naples, arriving there before her coming was suspected.
Rumour spread abroad that the Queen of Hungary had come to take her son away with her, and the unexpected event gave rise to strange comments: the fever of excitement now blazed up in another direction.