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 stone church of Gamla Uppsala, built over the pagan temple, dates from the early 12th century. Due to fire and renovations, the present church is only a remnant of the original cathedral.
Before the arrival of Christianity in Sweden, Gamla Uppsala was the seat of Swedish kings and a ceremonial site known all over northern Europe. The settlement was home to royal palaces, a royal burial ground, and a great pagan temple. The Uppsala temple, which was described in detail by Adam of Bremen in the 1070s, housed wooden statues of the Norse gods Odin, Thor and Freyr. A golden chain hung across its gables and the inside was richly decorated with gold. The temple had priests, who sacrificed to the gods according to the needs of the people.
The first Christian cathedral was probably built in the 11th century, but finished in the 12th century. The stone building may have been preceded by a wooden church and probably by the large pagan temple.