The Monastery of San Millán de la Cogolla is a historic religious site located in the La Rioja region of Spain. Founded in the 6th century, it is known for its beautiful Romanesque architecture and significant role in the early Christian history of the area. The monastery is dedicated to Saint Emilian, a hermit who lived in the region and is venerated for his piety. This monastery is also famous for its connection to the Glosas Emilianenses, which are some of the earliest examples of written Spanish language. The site has been recognized as a UNESCO World Heritage Site, highlighting its cultural and historical importance.