"Maximilien's habits and tastes:
The writers (not much clowns but serious men), who have not found a method to reconcile the contradictory opinions of contemporaries, have asked themselves to what did Robespierre owe the attachment of Duplay, his family, and his friends? Louis Blanc responds: “To the sweetness of his character, the facility of his interaction, and the goodness of his heart.” All the time that he did not devote to his pubic duties and his solitary walks, he passed close to his hosts,* and a bond, more and more intimate was established between them. Maximilien had been, from the first, seduced by the spectacle of a family whose patriarchal mores contrasted with the corruption of the age, and the Duplays’ sympathy for him grew yet from the confidence that he showed them.
Lamartine, whom it is necessary to consult when his affirmations were controlled, says that Robespierre paid for the services rendered him by his adoptive family in affection; “He housed his heart in this poor house. Talkative with the father, filial with the mother, paternal with the son, familiar and almost brotherly with the young daughters, he inspired and felt, in this interior circle formed around him, all the sentiments that an ardent soul cannot but inspire in spreading in so much space. Even love attached to his heart there where work, poverty, and contemplation had fixed his life…”
Nothing will better show the true place that Robespierre occupied in the home of the Duplays that the following writing by Mme Le Bas.
*Information given by Le Bas
fils, after his mother’s recollection."
Additionally, I found this site hawking a small box with Robespierre's picture on it; I found it quite odd, having seen nothing of the sort before, but...
http://www.antiquarium-ewe-premium.de/18106/19001.html?*session*id*key*=*session*id*val* (scroll down a bit more than half way to see it).