Temple de Montmorillon. A floor plan, cross section and view of the Octogone de Montmorillon, a Roman chapel at Montmorillon, in the Vienne department. Copper Engraving, c. 1760. This engraving presents architectural views and floor plans of the Templars’ Temple of Montmorillon, showing both the above-ground structure and the underground layout. The upper section illustrates exterior and cutaway views of the building, while the middle section provides circular and polygonal floor plans labeled “Plan of the Upper” and “Plan of the Lower.” At the bottom, a row of figures in medieval attire—likely Templar knights and clergy—adds historical context. The image reflects antiquarian interest in medieval architecture and the history of the Knights Templar.

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