Palazzo Rospigliosi, Renaissance palace in Zagarolo, Italy.

Palazzo Rospigliosi is a palace in Zagarolo with a courtyard containing a nymphaeum decorated with shells, two caryatids and a broken pediment holding a coat of arms. The piano nobile has frescoed friezes with allegorical figures, hunting scenes and the Battle of Lepanto, attributed to Antonio Tempesta and the Zuccari brothers. Late 18th-century stuccoes remain.

The first core of the palace existed by 1151, when the Colonna sold rights over the County of Tusculum to Pope Eugene III. The original nucleus was a Colonna castle with military functions until 1100, damaged in 1439 by troops under Giovanni Maria Vitelleschi. In 1622 the Colonna sold it to Cardinal Ludovico Ludovisi, and by 1668 it had passed to the Rospigliosi.

The Rospigliosi family shaped the interior spaces with large frescoes that still define the halls today. Visitors can observe how these artworks influence the appearance and mood of each room.

The building is accessible to visitors on certain days and offers guided visits. Upon arrival, ask about current opening times and tour availability.

One of the wings houses a toy museum in its lower rooms. This collection offers a surprising contrast with the historic architecture.