This model was constructed in Form-Z version 4.0.3 (rather out of date, but not completely legacy software - current version 7.0.1!) from the digital cadastral plan of the town, itself downloaded from the French governmental web site. It shows the extent of the original constructions at the death of the cardinal duc in 1642. Only the central strip of the town has been modelled.
Above the town floats the monogram of the good cleric - Armand Iacobus Cardinal Richelieu. This monogram AICR was a motif often used decoratively in the now-demolished château. It can be still be seen in the doors from that structure preserved at the Mairie.