Charles II was known to have had many mistresses and one of them was the famous or indeed the infamous beauty Louise de Keroualle. Her back round was that of nobility with her parents being Comte Guillaume de Penancoet de Keroualle and her mother Marie de Ploeuc de Timeur who was herself a daughter of a marquis. Still even with the families good name and Louise's good looks it was still apparent that her family was relatively poor and Louise did not even a dowry which damaged severely her chances of making a good marriage. So it happened that in 1668 at the age of nineteen she traveled to France to take up a position as a maid of honour to Henrietta Duchesse d'Orleans the youngest and most favorite sister of Charles II.
While marriage proposals did not came her way, no one failed to notice Henrietta's new maid of honour's beauty the poet Charles Robinet once said to Henrietta that "your new maid-of-honour is as sweet as she is beautiful". Then in 1670 Henrietta was asked by Louis XIV to negotiate the Treaty of Dover with Charles II which meant a trip to England for Henrietta and some of attendants one of them being Louise de Keroualle herself. It was during this trip in England that Charles noticed Louise and it is said that he wooed her throughout the whole trip. Once back in France a tragedy stuck that would change Louise's life forever, Henrietta became very ill and died soon after leaving Louise in a very tricky spot, that was she to do now with no position or money? she played around with the idea of becoming a nun but showed no real interest in it. In the end it was Charles II who wrote a message to the French king asking that Louise de Keroualle would came and serve as a maid of honour to his Queen Catherine of Braganza. This was something that Louis XIV viewed as an opportunity, to use Louise as someone who would generally report back on what was happening at the English court, and to keep the English king friendly with France.