Marble Pieces in the Romanesque Portal of Glory of the Santiago de Compostela Cathedral. New Data through a Multi-Analytical Approach

ABSTRACT

Probably the most important Romanesque artwork in Spain, the Portal of Glory of Santiago de Compostela is essentially made in granite, the most abundant stone in the NW of Iberia, with the only exception of five marble pieces. Different hypothesis on the origin of these marbles have previously been proposed based on visual assessment or by directly assuming a local source. To shed light on their quarry provenance, a multi-analytical study was performed combining polarized-light optical microscopy, cathodoluminescence microscopy, XRPD, SEM-EDS and stable C and O isotopes. The comparison of the results with the available databases reveals the use of marbles from the Estremoz Anticline (Portugal) in the three exquisitely carved columns strategically placed in the central arcade, whereas the other two pieces are local marbles, illustrating a more complex consumption of this noble material than that initially expected.     

Diplomacy in a Global Early Modernity: The Ambiguity of Sovereignty

Abstract

This is a concluding comment on the chapters of this special issue. After a discussion of the articles, we will take a closer look at the new view of European diplomacy and foreign relations. The historiographical change regarding early modern foreign relations has fundamentally altered the way we interpret the roles, the agencies and the loyalties of early modern envoys. Taking the conclusions of this research into account, we ask if diplomatic actors of the ancient regime differed distinctly from their Asian counterparts at all. Then, as a final point, we examine how fundamental changes in the Sattelzeit–particularly in Europe, but also in the context of global power relations–affected intercultural diplomacy.