Alberti was commissioned by the tyrant Sigismondo Malatesta to transform a pre-existing Gothic church into what would become the Tempio Malatestiano, a sort of mausoleum. Built in 1450 in Mantua, it was inspired by the Arch of Constantine and the concept of triumph over death. The arcaded side, with pilasters attached to piers, holds sarcophagi. It was never finished due to financial trouble. It has been speculated that the top story may have been meant to include another arch window.