Sahagún is a town and municipality of Spain, part of the autonomous community of Castile and León and the province of León. It is the main centre of population in the Leonese part of the Tierra de Campos natural region. Sahagún contains some of the earliest examples of the mudéjar architecture. It lies on the Way of St. James and is often considered the half-way point between St. Jean Pied de Port and Santiago de Compostela.