Off the top of my head, I know Augustin Robespierre was staying with the Ricords, though I don't know at what address. Charlotte was back in Paris after having been sent to Arras by her brothers, but I can't recall where she was staying - I can try to look it up, though. As for Saint-Just, I don't know, but one of his biographies probably mentions it... In fact, come to think of it, it might be mentioned in Autour de Robespierre : Le Conventionnel Le Bas. I'll check.
Élisabeth Le Bas has this to say on the subject of Saint-Just's address: "Saint-Just demeurait rue Gaillon, près Saint-Roch, dans un hôtel garni ; c’est de là que nous partîmes pour l’armée."
("Saint-Just was staying in the Rue Gaillon, near Saint-Roch, in a furnished apartment; it is from there that we departed for the army.")
And she doesn't deny Lamartine's assertion (which comes in the middle of a passage heavily annoted by her) that she went after her release from prison to Saint-Just's former lodging to buy a portrait of him that had been painted by the daughter of the maître d'hôtel. It's not farfetched to think that it could have been the same place, since that seems to be the only address of Saint-Just's that she knew.
For the rest, I'll keep an eye out. In any case, as zanyofsorrow points out below, letters are often the best source of information on addresses, so if you can get a hold of any correspondence, that's generally your best bet. (Normally, I would be able to help you there, but there's a continent and an ocean between me and my copy of Robespierre's correspondance (which includes letters from his siblings) and Saint-Just's Oeuvres complètes and me, alas.)
There is a letter from Charlotte to Augustin from 18 Messidor (5th July) where she says that she's staying with a friend of hers called Citoyenne Laporte. I've no idea who that Citoyenne Laporte is or where she lived, through.
I found Charlotte's address: http://books.google.fr/books?id=9WeheuSMVcEC&pg=PA90&dq=dupleix+robespierre&hl=fr&ei=EqB7TdbbAYbB8QPPkPimBA&sa=X&oi=book_result&ct=result&resnum=2&ved=0CDIQ6AEwATgU#v=onepage&q&f=false
Interrogation of Charlotte Robespierre, 13 thermidor an II:
"A elle [Charlotte] demandé ses nom, âge et qualitté et deumeure : Marie-Marguerite-Charlotte Robespierre, vingt-huit ans, vivant de son revenu, demeurant chés la citoyenne Laporte, rue de la Réunion, n° 200, et ce depuis à peu près un mois."
("She was asked her name, age, condition, and address: Marie-Marguerite-Charlotte Robespierre, twenty-eight years old, living off her revenues, staying with the citoyenne Laporte, in the Rue de la Réunion, n° 200, for about the past month.")
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?
Also, what exactly do you mean by "people" didn't know her name? She knew it. Presumably people close to her - her two brothers if no one else - knew it. And in the interrogation here it's never a question of anyone but her giving her name. It's clear that she had been calling herself by her mother's maiden name to escape notice but that she was denounced by someone who recognized her as Robespierre's sister (whether or not he knew her name was Charlotte is immaterial) at which point she saw no point in denying her identity any longer and provided her given names herself. No one else needed to be aware of her given names for her to confirm them.
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Saint-just changed address several times .
Do not know at what time
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("Saint-Just was staying in the Rue Gaillon, near Saint-Roch, in a furnished apartment; it is from there that we departed for the army.")
And she doesn't deny Lamartine's assertion (which comes in the middle of a passage heavily annoted by her) that she went after her release from prison to Saint-Just's former lodging to buy a portrait of him that had been painted by the daughter of the maître d'hôtel. It's not farfetched to think that it could have been the same place, since that seems to be the only address of Saint-Just's that she knew.
For the rest, I'll keep an eye out. In any case, as
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After that Saint-just Change the address again .
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But description not clear .
Found a : Saint-just
March 1794 : Rue Caumartin
But This is not his address in thermidor .
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There is a letter from Charlotte to Augustin from 18 Messidor (5th July) where she says that she's staying with a friend of hers called Citoyenne Laporte. I've no idea who that Citoyenne Laporte is or where she lived, through.
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Interrogation of Charlotte Robespierre, 13 thermidor an II:
"A elle [Charlotte] demandé ses nom, âge et qualitté et deumeure : Marie-Marguerite-Charlotte Robespierre, vingt-huit ans, vivant de son revenu, demeurant chés la citoyenne Laporte, rue de la Réunion, n° 200, et ce depuis à peu près un mois."
("She was asked her name, age, condition, and address: Marie-Marguerite-Charlotte Robespierre, twenty-eight years old, living off her revenues, staying with the citoyenne Laporte, in the Rue de la Réunion, n° 200, for about the past month.")
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Found the source
very good !
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“13 thermidor”
“Charlotte Robespierre, twenty-eight years old”
Charlotte Robespierre : february 1760
1794
Charlotte Robespierre : 34
A difference of 6 years ?
This is not Charlotte Robespierre ?
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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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It seems unlikely.
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For example , in Mémoires de R. Levasseur .
“There is a letter from Charlotte to Augustin from 18 Messidor (5th July)” ,
Signature is Robespierre .
At that time , it seems people did not know his name : Charlotte robespierre .
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Some contents of this letter , it seems that to Maximilien .