Messer Palla Rucellai having commissioned him to execute an altar-piece that was to be placed on his altar in S. Maria Novella, Giuliano began to paint in it the Martyrdom of S. Catharine the Virgin. Mountains in labour! He had it in hand for twelve years, but never carried it to completion after all that time, because he had no invention and knew not how to paint the many various things that had a part in that martyrdom; and, although he was always racking his brain as to how those wheels should be made, and how he should paint the lightning and the fire that consumed them, constantly changing one day what he had done the day before, in all that time he was never able to finish it. It is true that in the meantime he executed many works, and among others, for Messer Francesco Guicciardini--who had returned from Bologna and was then living in his villa at Montici, writing his history--a portrait of him, which was a passing good likeness and pleased him much. He took the portrait, likewise, of Signora Angela de' Rossi, the sister of the Count of Sansecondo, for Signor Alessandro Vitelli, her husband, who was then on garrison-duty in Florence. For Messer Ottaviano de' Medici he painted in a large picture, copied from one by Fra Sebastiano del Piombo, two full-length portraits, Pope Clement seated and Fra Niccolo della Magna standing; and in another picture, likewise, with incredible pains and patience, he portrayed Pope Clement seated, and before him Bartolommeo Valori, who is kneeling and speaking to him. [Illustration: THE MARTYRDOM OF S. CATHARINE (_After the painting by =Giuliano Bugiardini=. Florence: S. Maria Novella, Rucellai Chapel_) _Alinari_]