Built on the site of an Celtic oppidum, the castle of Pons was an important medieval stronghold due to its location as a hub of roads including those for the pilgrims of Saint James. It belonged to the lord of Aulnay, Charente-Maritime, to the dukes of Aquitaine, then to the lords of Pons. Razed in 1179 by the Duke of Aquitaine Richard Lionheart following a revolt of his vassal, the castle was rebuilt in 1187 by Geoffroy III de Pons with the addition of the imposing quadrangular Keep of Pons, partially over of the foundations of the original, smaller keep and partially over new foundations. Based on the chapel facade, it is believed that the chapel was also rebuilt during this period.
The castle was again destroyed in 1622 (with the exception of the keep and some defensive elements) by the armies of Louis XIII following the siege of 1621. A few years later, Marshal Caesar Phoebus d'Albret had the current main building erected. Despite its cold appearance, several rooms within the Keep have comfortable interior with wooden ceilings and mounted canvas decorated with allegorical figures. The base of the ramparts has been partially preserved, and forms a walk from which one can enjoy a panoramic view of the Seugne valley. Caesar Phoebus d'Albret, Sire de Pons, ordered the construction of the monumental staircase which connects the upper city to the lower city.
The buildings and vestiges of the medieval castle were bought in 1806 by the municipality. Only the Castral Chapel and the Saint-Gilles porch, the Keep and the ramparts on the cliffs are the remains of the medieval fortress. The municipality set up the esplanade in the public garden and repurposed the main building as the town hall.
References:The ancient Argos Theater was built in 320 BC. and is located in Argos, Greece against Larissa Hill. Nearby from this site is Agora, Roman Odeon, and the Baths of Argos. The theater is one of the largest architectural developments in Greece and was renovated in ca 120 AD.
The Hellenistic theater at Argos is cut into the hillside of the Larisa, with 90 steps up a steep incline, forming a narrow rectilinear cavea. Among the largest theaters in Greece, it held about 20,000 spectators and is divided by two landings into three horizontal sections. Staircases further divide the cavea into four cunei, corresponding to the tribes of Argos A high wall was erected to prevent unauthorized access into the theatron and may have helped the acoustics, but it is said the sound quality is still very good today.
Around 120 CE, both theaters were renovated in the Roman style.