Peñaflor Castle or Doña Blanca Castle

A magical place that hides a history of romanticism that dates back to the 13th century. Inside the Bardenas Reales park, this tower that has been eroded by the scourge of the weather today is a symbol of the region. Built by Sancho el Fuerte in the 13th century, it was originally conceived to protect the border between Navarre and Aragon. Later it was the prison of Princess Blanca of Navarra who was imprisoned by her father Juan II of Aragon for refusing the agreed marriage. The story goes that every night a shepherd came to give the princess food and drink and that when she was released, as a thank you, she herself gave this shepherd the land where her prison was located.

The ruins consist of a small central tower that served as a watchtower and accommodation for a small garrison and a walled area around it. Today only the ruins of the tower remain.