Monasterio de San Salvador in Cornellana is a monastery located in the municipality of Salas. Consisting of several Romanesque style buildings which started to be built in the 11th century, the monastery was founded by infanta Cristina Bermúdez, daughter of Bermudo II of León and his first wife Queen Velasquita Ramírez. She founded the monastery in 1024 after the death of her husband, infante Ordoño Ramírez 'the Blind', son of Ramiro III of León and his wife Sancha Gómez. Cristina lived in the monastery as a nun and was buried there.
After her death, the monastery was divided among her heirs, her sons and daughters; Alfonso, Aldonza, Ordoño, and Pelaya Ordóñez. A great-grandson of Cristina, the powerful Count Suero Vermúdez in 1120 donated the monastery to the Abbey of Cluny and then to the Cathedral of Oviedo.
References:Kakesbeck is one of the largest medieval fortifications in Münsterland and the oldest castle in Lüdinghausen. The imposingly grown complex originated in 1120 as a motte, a small hilltop tower castle. After numerous changes of ownership, the castle was extended onto two islands, but it was not until the 14th century that it underwent significant alterations and extensions under the von Oer family. The estate experienced its heyday in the middle of the 18th century, when it covered an area of almost one square kilometre and consisted of five further outer castles in addition to the core castle, which were secured by ramparts and moats.
The well-maintained condition of the castle today is thanks to the late Wilfried Grewing, the former lord of the castle. The foundation named after him has been particularly committed to preserving the property since 2020.