The Casa Poscia is located in the Via Saffi in Viterbo. This typical medieval house was the home of a young lady called Galiana, who was so beautiful that a Roman soldier killed her because she did not want him as a husband.
Casa Poscia Viterbo
Useful information

Address: Via Aurelio Saffi – Viterbo. Opening hours: Not open to tourists.
History and description
The Casa Poscia was built in the 14th century. The most striking part of the façade is the so-called profferlo (staircase ending in a loggia) with the flower-decorated balcony.
One of the most beautiful girls of Viterbo used to live in this house. According to legend, this Galiana had a skin so pale and transparent that, when she drank wine, one could see it descending down her throat.
In reality, it is not really known who built the house. The coat of arms on the façade is so damaged that it does not give any information either. The name Poscia is therefore presumed to be that of one of the last owners of the house.
The tomb of Galliana is attached to the exterior of the Sant’Angelo in Spatha Church.