How did classical architecture influence the throne in Masaccio’s Pisa Altarpiece?

In the 1426 Pisa Altarpiece, the architectural elements of the throne reflect Masaccio’s awareness of the influence of Roman antiquity on the work of his friend, the architect Filippo Brunelleschi.1

By incorporating these classical architectural features, Masaccio moved away from medieval artistic conventions, instead creating a massive, structurally grounded setting for the Madonna. This design, combined with the artist's sophisticated use of light and shadow, gives the figure an unprecedented sense of volume and monumentality, making her appear to tower over the spectator. This approach highlights the shared vision between Masaccio and Brunelleschi, who both sought to create art that was rational, human-centered, and deeply inspired by the ancient world.23