A comprehensive three‑volume reference work covering the geography, history, and notable biographies of the Indre‑et‑Loir region in France. First published in 1878, the dictionary was later reissued in 1988 by Ero – ed. Regionales de, providing updated editions for scholars, genealogists, and regional enthusiasts. The volumes compile detailed entries on towns, landmarks, historical events, and prominent figures, making it an essential resource for anyone researching the cultural and historical heritage of this French province.