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 Broch of Clickimin is a large and well preserved, though somewhat restored broch near Lerwick. Originally built on an island in Clickimin Loch (now increased in size by silting and drainage), it was approached by a stone causeway. The water-level in the loch was reduced in 1874, leaving the broch high and dry. The broch is situated within a walled enclosure and, unusually for brochs, features a large 'blockhouse' between the opening in the enclosure and the broch itself. Another unusual feature is a stone slab featuring sculptured footprints, located in the causeway which approached the site. Situated across the loch is the Clickimin Leisure Centre.