The existence of a fortification at the site of Mehun-sur-Yèvre dates from antiquity. The major remains are of the early 13th century and the later 14th century. The present standing ruins date from a castle founded under the Courtenays after 1209. This fortress was transformed into a princely residence by John, Duke of Berry in 1367. Largely ruined in the 18th century the castle represented an excellent example of late Gothic architecture and early Renaissance architecture. Charles VII of France, died in the castle on July 22, 1461.
The castle is built on a trapezoid plan, and originally had a tall cylindrical tower at each corner and a rectangular tower in the middle of one of the long sides. An entrance was formed in the wall between two of the towers. One tower (12m diameter) was much larger than the others (8m) and served as the keep. The keep and the west tower still stand to their full height, each capped with intricate defensive machicolations. Manuscript illustrations indicate that the castle also had a large chapel above the principal entrance.References:
Sirmione castle was built near the end of the 12th century as part of a defensive network surrounding Verona. The castle was maintained and extended first as part of the Veronese protection against their rivals in Milan and later under the control of the Venetian inland empire. The massive fortress is totally surrounded by water and has an inner porch which houses a Roman and Medieval lapidary. From the drawbridge, a staircase leads to the walkways above the walls, providing a marvellous view of the harbour that once sheltered the Scaliger fleet. The doors were fitted with a variety of locking systems, including a drawbridge for horses, carriages and pedestrians, a metal grate and, more recently, double hinged doors. Venice conquered Sirmione in 1405, immediately adopting provisions to render the fortress even more secure, fortifying its outer walls and widening the harbour.
Thanks to its strategical geographical location as a border outpost, Sirmione became a crucial defence and control garrison for the ruling nobles, retaining this function until the 16th century, when its role was taken up by Peschiera del Garda.