Castle of Laguna de Negrillos is one of the fortress that belonged to the Conde Luna, with a characteristic structural style which features for a square floor and use of masonry , except in the corners, whose arris are built in ashlar stone. The keep tower and the crenellated walls are preserved.
It was arisen in the 13th century, although what you can seen today is the reconstruction carried out in the 15th century by Don Diego Fernández de Quiñones and Doña María de Toledo.References:
Krickenbeck moated castle is one of the oldest on the lower Rhine. Its history dates back to the year 1104, when the castle was first mentioned. It is unclear why the old castle, which was certainly inhabited by Count Reginar, was abandoned or destroyed. In the mid-13th century the castle was moved to the current location. At the end of the 14th century the new castle belonged to the Counts of Kleve.
Johann Friedrich II of Schesaberg converted the castle into a Baroque mansion between 1708-1721. On September 7, 1902, a fire destroyed the entire mansion. From 1903 to 1904, a three-winged castle was built in the Neo-Renaissance style. Today Krickenbeck is a conference center.