Castillo de Castillejo de Robledo is a 12th-century fortress in Soria province, originally built by the Knights Templar over an earlier Muslim fort. After the Order of the Temple's suppression in 1311, it passed to the Hospitaller Order and later the townspeople. Fifteenth-century reforms were undertaken by Don Alfonso Carrillo de Acuña, nephew of the Archbishop of Toledo. Two towers remain preserved—a pentagonal tower hanging over a cliff with crenellations and a keep with irregular shape accessed via a pointed arch. The castle retains evidence of both Muslim construction and Templar modifications, and has been protected as a Cultural Interest Asset since 1949.
