There is little evidence that she ever spent much time at her official address. Living in remote villas, as she mostly did, and simply going by "Madame Calment

There is little evidence that she ever spent much time at her official address. Living in remote villas, as she mostly did, and simply going by "Madame Calment", as she apparently also mostly did, few would have paid attention to her given name or any discrepancy between that and official records. When her extraordinary claims of old age became famous many decades later, well, have you ever seen family members arguing what really happened many decades ago? Doubts would have been hard to sustain. https://www.liebertpub.com/doi/10.1089/rej.2018.2167 https://www.liebertpub.com/doi/10.1089/rej.2018.2167 digs into this a bit.