A disciple of Piero was Lorentino d'Angelo of Arezzo, who made many pictures in Arezzo, imitating his manner, and completed those that Piero, overtaken by death, left unfinished. Near the S. Donatus that Piero wrought in the Madonna delle Grazie, Lorentino painted in fresco some stories of S. Donatus, with very many works in many other places both in that city and in the district, partly because he would never stay idle, and partly to assist his family, which was then very poor. In the said Church of the Grazie the same man painted a scene wherein Pope Sixtus IV, between the Cardinal of Mantua and Cardinal Piccolomini (who was afterwards Pope Pius III), is granting an indulgence to that place; in which scene Lorentino portrayed from the life, on their knees, Tommaso Marzi, Piero Traditi, Donato Rosselli, and Giuliano Nardi, all citizens of Arezzo and Wardens of Works for that building. In the hall of the Palazzo de' Priori, moreover, he portrayed from the life Cardinal Galeotto da Pietramala, Bishop Guglielmino degli Ubertini, and Messer Angelo Albergotti, Doctor of Laws; and he made many other works, which are scattered throughout that city. [Illustration: PIERO DELLA FRANCESCA: THE BAPTISM IN JORDAN (_London: National Gallery, 665. Panel_)] It is said that once, when the Carnival was close at hand, the children of Lorentino kept beseeching him to kill a pig, as it is the custom to do in that district; and that, since he had not the means to buy one, they would say, "What will you do about buying a pig, father, if you have no money?" To which Lorentino would answer, "Some Saint will help us." But when he had said this many times and the season was passing by without any pig appearing, they had lost hope, when at length there arrived a peasant from the Pieve a Quarto, who wished to have a S. Martin painted in fulfilment of a vow, but had no means of paying for the picture save a pig, which was worth five lire. This man, coming to Lorentino, told him that he wished to have the S. Martin painted, but that he had no means of payment save the pig. Whereupon they came to an agreement, and Lorentino painted him the Saint, while the peasant brought him the pig; and so the Saint provided the pig for the poor children of this painter. Another disciple of Piero was Pietro da Castel della Pieve,[4] who painted an arch above S. Agostino, and a S. Urban for the Nuns of S. Caterina in Arezzo, which has been thrown to the ground in rebuilding the church. His pupil, likewise, was Luca Signorelli of Cortona, who did him more honour than all the others.