A Vertical Palimpsest. Construction and structural evolution of the Bell Tower of the Mosque-Cathedral of Córdoba
Published 2026-05-26
Keywords
- Heritage tower,
- Mosque-Cathedral of Córdoba,
- construction phases,
- composite masonry
How to Cite
Copyright (c) 2026 Isabel Cuerda-del-Valle, Emilio Romero-Sánchez, Antonio Morales-Esteban

This work is licensed under a Creative Commons Attribution 4.0 International License.
Abstract
The Bell Tower of the Mosque-Cathedral of Córdoba is one of the most significant composite towers in the western Mediterranean. Rising 54 m above the historic centre, it encloses the caliphal minaret of ʿAbd al-Raḥmān III, which now acts as the structural core of the present tower. This article interprets the tower as a vertical palimpsest, in which successive historical layers have reshaped the structure while preserving key traces of its previous forms. Drawing on earlier studies, archival sources, recent 2D/3D reconstructions and an on-site survey, it reconstructs the main construction phases of the tower and analyses their implications for its geometry and structural behaviour. The tower is understood as a composite vertical system, in which the caliphal core, the later Christian masonry shell and modern interventions interact. The study provided a preliminary geometric and structural framework to guide future seismic and geotechnical assessments of this complex heritage structure.
