Martin Christ is Research Fellow at the Max Weber Centre of the University of Erfurt, where he works on the urban dead of Munich and London as part of the research group “Religion and Urbanity: Reciprocal Formations”. He is interested in confessional coexistence in early modern Europe, urban history and the placement and treatment of the dead in major European centres. He has recently published Biographies of a Reformation. Religious Change and Confessional Coexistence in Upper Lusatia, 1520-1635 (2021). Carmen González Gutiérrez is currently Ramón y Cajal Research Fellow at the department of Art History, Archaeology and Music at the University of Córdoba, Spain. She is part of the Getty sponsored workshop series “Mediterranean Palimpsests: Connecting the Art and Architectural Histories of Medieval & Early Modern Cities” (MCities). She specialises in the medieval history and archaeology of al-Andalus, especially during the Umayyad period. She has published on the medieval archaeology of Córdoba, Islamic architecture, and the history of mosques in al-Andalus.