"Castile, my fatherland. " a Medina del Campo Travel Page by Mikivoyageur

That's the La Mota Castle, one of the best conserved castles in Castile. I've visited this great building many times since my childhood, when I visited my granparents...
The word “Mota” refers to an artificial mountain built to defend the castle better, this mound was called in early English: motte. The Mota fortress had a military function and it also was a royal dungeon, notoriously, Cesar Borgia was held prisoner there. The castle was built between the 12th Century and 15th Century. It has a moat with its own drawbridge (today fixed), an outer curtain wall (for artillery), an inner curtain wall (with arrow slits for archers and guards) surrounding a large courtyard (with a chapel), and a great square tower (which is the Keep).
The castle was abandoned and collapsed, but was restored after the Spanish Civil War (1936-1939). It was the first monumental building in Medina designated as a Heritage Site (Bien de interés cultural).

The word Medina which means “city” in Arabic (Arabic: المدينة‎; alternatively transliterated into English as Madinah), so the origin of Medina may be Muslim; but it is not proved. We know for sure that Medina del Campo was founded on the hill called “La Mota” in the 11th Century, in the same place where the Castle is, and remains of a wall still survive. At the moment, the Mota hill is a suburban area, however in the Middle Ages it was the town centre.
In addition, this hill has archaeological remains such as a stronghold, a medieval village and a Celtic walled settlement dated from 4th century BC (Iron Age).