Château de Boutavent may have been built in the 11th century, but there is no written evidence of exact date. It has been confirmed that during the 13th and 14th century, the castle belonged to the Lords of Montfort. According a legend during the 7th century the castle was the residence of Judicaël, King of Domnonée, and that it had been the place where the King and saint Éloi met. This last was sent to bring peace in a fight for borders between Bretons and French.
The castle is structured into two classical elements: a courtyard and a barnyard, separated by a deep gap. Four buildings which could be guesthouses, are on both sides of the barnyard. The fortification and elements of the barnyard can still be seen.
In the 16th century, the castle was already ruined. The circumstances of the destruction of the fortified site of Boutavent remain mysterious. Maybe it has been dismantled during the War of succession (second half of the 14th century) or in 1373, during the campaign of Bertrand du Guesclin in Brittany, but nothing proves that the castle hasn't been inhabited then.
Many local authors of the 19th century wrote about Boutavent, in particular writers like Poignand, Vigoland or Oresve. Even though these stories constitute rare stories about the site, it is impossible to retrace the entire history of the castle, as there are only a few sources.
The castle has not been searched yet but many campaigns of consolidation of the relics took place since 2006. During these campaigns, archaeological material has been found (slate, ceramic, ground pavement and glazed tiles).
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.