Castle of La Mota built
1100 CE.
Shown on the map at 41.309°, -4.908°.
The La Mota Castle or Castillo de La Mota is a medieval fortress in the town of Medina del Campo, province of Valladolid, Spain. It is so named because of its location on an elevated hill, a mota (in Spanish), from where it dominates the town and surrounding land. The adjacent town came to be surrounded by an expanding series of walls in subsequent years, of which little remains. It has been protected by the state since 1904, first as a national monument and more recently as a site of cultural interest, or Bien de Interés Cultural.
Text from the Wikipedia article La Mota Castle (Medina del Campo), licensed CC BY-SA 4.0.