with the Guelfs; and so it came about, and on the 2nd day of July in the said year, the said Pope, with his cardinals, and with King Charles, and with the said Emperor Baldwin, and with all the barons and gentlemen of the court (the people of Florence being assembled on the sands of the Arno hard by the head of the Rubaconte Bridge, great scaffolds of wood having been erected in that place whereon stood the said lords), gave sentence, under pain of excommunication if it were disobeyed, upon the differences between the Guelf and Ghibelline parties, causing the representatives of either party to kiss one another on the mouth, and to make peace, and to give sureties and hostages; and all the castles which the Ghibellines held they gave back into the hands of King Charles, and the Ghibelline hostages went into Maremma under charge of Count Rosso. The which peace endured but a short time, as hereafter we shall make mention. And on that day the said Pope founded the church of San Gregorio, and called it after his own name, which church was built by them of the house of Mozzi, which were merchants for the Pope and for the Church, and in a little time were come to great riches and state; and the said Pope dwelt in their palaces at the head of the Rubaconte Bridge on the further side of Arno, whilst he abode in Florence; and King Charles abode in the garden of the Frescobaldi, and the Emperor Baldwin at the Bishop's Palace. But on the fourth day thereafter, the Pope departed from Florence, and went to sojourn in Mugello with Cardinal Ottaviano, which was of the house of the Ubaldini, who were his hosts, and who did him great honour. At the end of the summer, the Pope departed, and his cardinals and King Charles, and went over the mountains to Lyons-on-Rhone in Burgundy. And the reason why the Pope departed suddenly from Florence was that when he had caused the representatives of the Ghibelline party to come to Florence, and to kiss the representatives of the Guelfs on the mouth in token of peace, and to remain in Florence to complete the treaty of peace, and they returned to the place of their sojourn in the house of the Tebalducci in Orto San Michele, it was told them, whether it were true or false, that King Charles' marshal, on the petition of the great Guelfs would cause them to be hewn in pieces if they did not depart from Florence. And that this was the cause we believe by reason of the virulence of the factions. And straightway they left Florence and departed, and the said peace was broken; wherefore the Pope was sorely disturbed, and departed from Florence, leaving the city under an interdict, and went, as we have said, to Mugello; and for this cause he continued in great wrath against King Charles. [Sidenote: 1274 A.D.] [Sidenote: 1275 A.D.]