Ippolito de' Medici, [201]
Isaiah: by Raphael, [177]
Italian painting; the master's opinion of, [280], [281]
Jacopo del Conte, [252]
Jacopo della Quercia: studied by the master, [136], [170], [171]
Jacopo di Sandro: an assistant, [151]
Jacopo: see Galli, L'Indaco, Sansovino
Jean: makes a model of the Dome, [247]
Jeremiah: the Prophet, [174]
Joel, [174]