Albert, Leone Battista, an Italian architect, poet, painter, and sculptor, born in 1404, died in Rome in April, 1472. His essays on painting and sculpture are greatly admired. His most famous work, however, is a treatise Be Re Aedificatoria. As an architect, he was often employed by Pope Nicholas V., and he designed and superintended the erection of many edifices in Florence, Rimini, and Mantua.