GIOTTO'S INVITATION TO ROME.
Boniface VIII., desirous of decorating St. Peter's church with some paintings, having heard of the extraordinary talents of Giotto, despatched one of his courtiers to Tuscany, to ascertain the truth, as to his merits, and to procure designs from other artists for his approbation and selection. Vasari says, "The messenger, when on his way to visit Giotto, and to enquire what other good masters there were in Florence, spoke first with many artists in Siena—then, having received designs from them, he proceeded to Florence, and repaired one morning to the workshop where Giotto was occupied with his labors. He declared the purpose of the Pope, and the manner in which that pontiff desired to avail himself of his assistance, and finally requested to have a drawing that he might send it to his holiness. Giotto, who was very courteous, took a sheet of paper and a pencil dipped in a red color; then resting his elbow on his side to form a sort of compass, with one turn of the hand, he drew a circle so perfect and exact that it was a marvel to behold. This done, he turned smiling to the courtier, saying, 'There is your drawing.' 'Am I to have nothing more than this?' enquired the latter, conceiving himself to be jested with. 'That is enough and to spare,' replied Giotto, 'send it with the rest, and you will see if it will not be recognized.' The messenger, unable to obtain anything more, went away very ill satisfied, and fearing that he had been fooled. Nevertheless, having despatched the other drawings to the Pope, with the names of those who had done them, he sent that of Giotto also, relating the mode in which he had made his circle, without moving his arm and without compass; from which the Pope, and such of the courtiers as were well versed in the subject, perceived how far Giotto surpassed all the other painters of his time. This incident becoming known, gave rise to the proverb still used in relation to people of dull wits, 'In sei più tondo che l'O di Giotto,' (round as Giotto's O,) the significance of which consists in the double meaning of the word tondo, which is used in the Tuscan for slowness of intellect, and slowness of comprehension, as well as for an exact circle. The proverb besides has an interest from the circumstance which gave it birth."
Giotto was immediately invited to Rome by the Pope, who received him with distinction, and commissioned him to paint a large picture in the sacristy of St. Peter's, with five others in the church, representing subjects from the life of Christ, which gave so much satisfaction to the pontiff, that he commanded 600 gold ducats to be paid to the artist, "besides conferring on him so many favors," says Vasari, "that there was talk of them throughout Italy."