Join upcoming events being held in Cuéllar. Cuéllar is a historic and culturally-rich city located in the Castile and León region of Spain, known for its well-preserved medieval architecture, including the Cuéllar Castle, a national monument, and its charming old town, as well as its annual festivals, such as the Medieval Market and the Jarramplas Festival, making it an ideal destination for those seeking to immerse themselves in Spanish history and traditions.