The original palace was built in the 14th century. It was the seat of the Casali family, lords of Cortona until 1409. only a few walls of the original building remained. The Renaissance front from the beginning of the 17th cent is the work of Filippi Berretini. Today the palace is the seat of the city library, the historical archive, the Etruscan Museum and the Etruscan Academy. The courtyard of the Casali Palace is the best photo stop in Cortona.