Between the last two chapels is a monument of Cardinal Giulio Acquaviva, Bishop of Atrii, who was created Cardinal at the age of twenty by P. Pius V, and died in 1574, aged 28 years. It was originally executed by Isaia da Pisa in 1574, but was re-modelled by Borromini. The two flanking statues in scallop-topped niches portray allegories of Temperance and Prudence. The latter is fully clothed and holds a snake, but the former is almost nude and was a rather risky sculpture for the time.