Complex sentence: He asked in his will that his pupil, Lorenzo di Credi, should be engaged to arrange for it to be cast, but after much delay the Venetians in 1490 selected Leopardi to cast it and he also made the pedestal on which it stands.
Split into simpler sentences: He asked in his will that his pupil, Lorenzo di Credi, should be engaged to arrange for it to be cast. After much delay the Venetians in 1490 selected Leopardi to cast it and he also made the pedestal on which it stands.