A fascinating journey through the history of one of Europe’s benchmark Romanesque cities. The international nature of Santiago de Compostela cannot be understood without the figure of Diego Gelmirez (1070–1140). His long life was the definitive move forward for Santiago which led to its being one of Europe’s benchmark Romanesque cities. Through the authors’ new critical approaches and the reproductions of historical memoirs never shown before, this publication draws original political, economic and cultural maps of Romanesque Europe.