The castle of Montealegre, built in the 12th century, was mentioned for the first time in 1173, when Rodrígo Gutiérrez was appointed lord of Montealegre; together with the castles of Ampudia, Belmonte, Torremormojón, Medina de Rioseco, Mucientes and Trigueros, it formed the defence line of the southern border of the Kingdom of León. The castle was revamped in 1297 by Alfonso Tello Pérez de Meneses, appointed lord of Montealegre by King Alfonso VIII.
In the 13th century, the domain was transferred to the Order of Saint James, which granted a charter to the village in 1219. Further owners of Montealegre were the Albuquerque (14th century), who defended the castle against King of Castile Peter the Cruel in 1354, and the Manuel (15th-17th centuries). The Manuel family maintained in the town one of the most significant Jewish communities in the province. In 1626, Montealegre became a Marquisate, granted by King Philip IV to Martín de Rojas y Guzmán.
The present castle, with its austere and strong appearance, has a slightly trapezial groundplan, with four strong towers at its corners. Three of them are rectangular and the fourth is pentagonal and served as the keep. In the middle of its curtain walls it is fitted with slender circular towers. The height of its walls range from 18 to 24 meters with a thickness of 4 meters. With its functional and horizontal impression it represents an adoption of a Mediterranean-Arab castle, a style known in Europe from the 13th century.
References:The Château du Lude is one of the many great châteaux of the Loire Valley in France. Le Lude is the most northerly château of the Loire Valley and one of the last important historic castles in France, still inhabited by the same family for the last 260 years. The château is testimony to four centuries of French architecture, as a stronghold transformed into an elegant house during the Renaissance and the 18th century. The monument is located in the valley of Le Loir. Its gardens have evolved throughout the centuries.