Eventually it became common knowledge that Louis and Athénaïs were having a sexual relationship. Their first illegitimate child was a daughter who was named after the couple ; Louise Françoise de Bourbon (1669-1672) but who died young. As the children born to the couple increased a house in Paris was bought on the Rue Vaugirard where the children could be bought up by their nanny Madame Scarron (future Madame de Maintenon) and secret wife of Louis). Thanks to the constant requests of Athénaïs in 1673, the couple's three living illegitimate children were legitimated by Louis XIV and given the royal surname of "de Bourbon". Their mother's name, however, was not mentioned. Despite having successfully seen her children with Louis legitimised, the arguments between Louis and Athénaïs became more and more frequent as well as ferocious but the couple would invariably work things out. However The ""Affaire des Poisons"" (Affair of the poisons), which erupted in September 1677. This was a national scandal and it was thought that Athénaïs had been using certain poisons on Louis to ensure her influence on him would remain strong. Throughout her time as mistress of Louis her influence on female fashion at court also remained considerable.