I don't doubt that she knew her own date of birth, but there are many reasons she might have lied about her age. If the first part of the interrogation is any indication, when they found her she was also lying about her name, or rather using her mother's name, Carraut. In any case, all the other information she gives fits with the other documents concerning her, which can only lead to the conclusion that she was either lying about her age or whoever was doing the writing either misheard her or didn't write clearly.
Another Charlotte Robespierre who has the exact same three first names as Charlotte, admits to having lived with the Duplays and having feuded with them and her two brothers, an older and a younger, just like Charlotte, to interacting with Guffroy and therefore causing her brothers' further displeasure, just like Charlotte, and to being found using Charlotte (and Maximilien and Augustin)'s mother's maiden name? Somehow, I don't think that's likely. People do lie about their age and this is especially common for unmarried women in a period when never marrying was considered the worst possible fate for a woman.
A relative with the exact same name of whom we have absolutely no record? Let's just agree to disagree, because unless you can produce documentation indicating the existence of two Charlotte Robespierres - and no, this doesn't count as evidence on its own - you won't convince me.
...Except for the part where she tells her interrogators that her name is Marie-Marguerite-Charlotte, the same names as are found on Charlotte Robespierre's birth certificate, which can also be viewed at the above link if you're interested. Why do you accept the possibility of people lying about their names but not their ages?
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“13 thermidor”
“Charlotte Robespierre, vingt-huit ans”
That she should be born in 1766 .
Maximilien robespierre's mother died in 1764 .
Charlotte robespierre did not know her mother's date of death ?
Why she lied about her age ?
Seems no reason
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This person is not Maximilien's sister .
Maybe a relative of Their .
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