The building dates back to the
18th century and was originally owned by the Count Ariosti family. Between 1778 and 1780, Count Alfonso Ariosti sold the palace to Mario Nerucci, a member of a noble family from
Amiata. On 20 November 1803, Bishop
Fabrizio Selvi, who sought to provide the
Diocese of Grosseto with a new episcopal residence, purchased the building from Nerucci, in exchange for the Palazzo Gigli, the old episcopal residence adjacent to the
Cathedral of San Lorenzo. A few years later, Bishop Selvi hosted Grand Duke
Leopold II of Tuscany and Grand Duchess
Anna Maria of Saxony in the new episcopal palace, as noted by an inscription. The palace was renovated and decorated during the episcopate of Bishop
Giovanni Battista Bagalà Blasini (1876–1884), who had all the coats of arms of the bishops of Roselle and Grosseto painted in the main hall. Between 1927 and 1928, Bishop
Gustavo Matteoni expanded the building, raising part of it, and restored the façade facing the main street. The episcopal palace was damaged during
World War II by an
air raid on 29 November 1943, and was subsequently restored between 1948 and 1951 under the initiative of Bishop
Paolo Galeazzi, resulting in the loss of many internal decorations, including the previously mentioned fresco cycle with the coats of arms of the bishops. Further restoration and renovation of the interior spaces occurred between 1961 and 1967. A conservation-restoration of the building was carried out during the episcopate of
Angelo Scola (1991–1995). ==Description==