The façade of the palace is decorated with interesting portal and windows in the shape of huge maws. In ancient Rome, this place was called the House of Monsters. In this house for 12 years lived (1702-1714), Queen Marysienka Sobieska, widow of Polish King John III Sobieski. A remembrance of this fact - the coat of arms of John III Sobieski and next to it the family coat of arms of Marysienka are placed under the rococo portico with six columns. When Marysienka came to Rome, she made a great impression with the wealth of her court. Her entourage consisted of 300 people, 30 carriages, 500 horses, and supposedly even a few camels. As she strode through the streets of Rome, she shocked the inhabitants because the servants accompanying her were dressed in Turkish clothes.
