Construction works for Peñafiel Castle commenced in the 10th century, although the contemporary structure underwent major interventions during the 14th and 15th centuries. This medieval fortress was declared a National Monument in 1917 and currently stands as a veritable emblem of wine tourism in Ribera del Duero.
Peñafiel and its castle were key defensive locations along river Duero, both for Christians and Muslims in the 9th and 10thcenturies. Sitting atop the hill, the castle controlled the valleys of rivers Duero, Duratón and Botijas, and protected the population.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.