Alfaro, Anguiano, Arnedo, Calahorra, Cervera, Ezcaray, Haro, Logroño, Nájera, Camero Nuevo, Santo Domingo de la Calzada, Camero Viejo

San Millán de la Cogolla is a municipality with around 225 residents at an altitude of 728 meters. The town dates to the 400s and appears to have been founded by a Christian community. San Millán de la Cogolla is home to the UNESCO World Heritage Site monasteries of Suso and Yuso.

History

María de la O Lejárraga García, better known by her pen name María Martínez Sierra, was born on 28 December 1874 in San Millán de la Cogolla into a wealthy family. Her father was a doctor, and, when Martínez was a 4-year-old, he moved the family to the Carabanchel Bajo in Madrid.

Alesanco, Alesón, Arenzana de Abajo, Arenzana de Arriba, Azofra, Badarán, Bezares, Bobadilla, Camprovín, Canillas de Río Tuerto, Cañas, Cárdenas, Castroviejo, Cordovín, Hormilla, Hormilleja, Huércanos, Manjarrés, Nájera, Santa Coloma, San Millán de la Cogolla, Torrecilla sobre Alesanco, Tricio, Uruñuela, Villar de Torre, Villarejo