What is an absidiole?
An absidiole (also called an apsidiole or radiating chapel) is a small apse: a semicircular or polygonal niche that projects from the outer wall of a church. Absidioles are found primarily in Romanesque and Gothic church architecture, arranged around the main apse or along the transept.
Function
The absidiole originally served a liturgical purpose. Each absidiole contained a small altar where a priest could celebrate Mass. In large churches and cathedrals, several absidioles were needed because multiple Masses were read daily by different priests.
Architecturally, absidioles enrich the exterior composition. The semicircular forms on the outside give the church a distinctive silhouette, particularly when they are arranged in a stepped formation around the ambulatory.
Application
Absidioles occur in various configurations:
- Ambulatory with radiating chapels — absidioles arranged radially around the semicircular ambulatory, forming a crown of small chapels
- Transept absidioles — small apses on the eastern side of the transept arms
- Freestanding absidioles — built directly against the main apse, without an intervening ambulatory
Well-known examples include the Romanesque churches of the Auvergne (France) and Speyer Cathedral (Germany), where multiple absidioles create a stepped, pyramidal silhouette.
Related terms
- Apse
- Choir
- Transept
- Romanesque
- Gothic
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