The portego is similar to a reception hall but has peculiar features.
[2][3] The portego is known from the ancient times; it is present even in the oldest Venetian palaces.
In later centuries and especially during the emergence of the Renaissance architecture, the portego original central structure has changed substantially, allowing for T-shaped and L-shaped halls.
[4] Furthermore, the portego was crucial in providing ventilation and air circulation for the palazzo which, especially during medieval summers, allowed for respite from the humid weather and smells emitted from the often sewer infested waterways of Venice.
This large room is usually decorated by a multi-light polifora, its size depending on the width of the interior.