The Loggia degli Osii is a building located in Milan, Italy. It is a loggia, which means that it is an open space with archways, generally used for walking or resting. The Loggia degli Osii was built in the 14th century by the Osii family, a noble family from Milan. It is located in Piazza Mercanti, a historic square that was once the heart of the city's commercial and political life. The building has a brick facade, typical of medieval Lombard architecture. The arcades are supported by stone columns and the roof is decorated with decorative battlements. The arcades themselves are richly decorated with geometric patterns and sculptures, testifying to the elegance and refinement of the architecture of the period. The Loggia degli Osii was used as a meeting place and meeting place for members of the Osii family, as well as dignitaries and notables of the city. It also served as a starting point for processions and important celebrations. Over the years, the Loggia degli Osii has undergone several restorations and modifications, and it is now part of the list of historic monuments of Milan.