Reborn Light: Three Historic Stained Glass Windows Restored in Seville Cathedral

Published on April 29, 2026 | Translated from Spanish

The Heritage Commission of the Junta de Andalucía has given the green light to the restoration of three stained glass windows in the Cathedral of Seville, dating from the 16th and 17th centuries. Deterioration caused by humidity, pollution, and the passage of time has made an intervention necessary, including cleaning, consolidation, and reintegration of missing pieces, with the aim of restoring the original splendor to these religious representations.

Interior of the Cathedral of Seville, colored light shines through three restored stained glass windows from the 16th and 17th centuries. Detail of cleaning and reintegration of pieces, with scaffolding and restorers working, showing the original splendor.

Precision techniques to save the light of the 16th century 🛠️

The technical process will be supervised by conservation specialists. Low-power laser cleaning methods will be used to remove dirt without damaging the original glass. The consolidation of fragile pieces will be carried out with state-of-the-art reversible resins, and gaps will be reintegrated with hand-blown glass of similar characteristics to the originals. All work will be documented in a digital record for future interventions.

Technological miracle: let the Santo Entierro not find out 😅

While experts fine-tune their lasers and resins, one cannot help but think that, finally, technology performs a miracle that the Seville rain could not. Now we just need someone to remember, when finished, to also clean the door windows, which have a layer of dust that would challenge even the most stoic bearer. Of course, if the result is this good, maybe even tourists will stop asking if the sun comes in through there or if it's an Instagram filter.