His parents: Charles and Jeanne de Valois-St-Remy 

His birth posed serious problems to his father who fought his whole life to make him legitimate. It is in fact the marriage of his father that creates an impossible situation. This marriage was not recognized by the Prince of Condé. Lacking male heirs, Louis III could not accept that the rights of his house would pass to the offspring of a marriage with an illegitimate branch of the House of Valois. Moreover Thomas de Valois, Jeanne's father, had an execrable reputation, a marriage with his daughter was thus undesirable. Louis-Thomas was raised  within a family that worked on the estates in Chantilly, he became the administrator of the estate and dealt with the industrial activities of the family. It included the porcelain and lace factories. He received  from his father the titles of Comte d'Anisy, Ecouen, Vallery, and Fère. But this irritated the princesse de Conti who felt that these titles belonged by 
right to the young Prince de Condé.   
The problem was referred to the King who had had enough of the problems caused by Charles de Charolais and decided, in 1745, to exile Louis-Thomas to England with a prohibition not to return to France. What he does for a living then is not known, but it through him that the actual Condés descend.