Appears in Sharpe's Revenge and Sharpe's Waterloo (films)
We meet Lucille in Sharpe's Revenge, as Bernard always says, "Lucille was not meant for Richard Sharpe, she was meant as a present for Capt William Frederickson after all the soldiering he'd done, I never meant Sharpe to fall in love with her, and he was never meant to end his days with Lucille in Normandy. But once he fell for her, it felt right"!
Her story begins in Sharpe's Revenge, on a dark night at the Chateau Lassan in Normandy, where Sharpe and Frederickson have gone to try and prove Sharpe's innocence of the theft of Napoleon's treasure after the Battle of Toulouse, but unfortunately Pierre Ducos, Napoleon's spy , the real thief, got there first and murdered Lucille's brother Henri Lassan. By the time Sharpe gets to the Chateau, Lucille thinks he is the murderer, and shoots him with an old blunderbuss, injuring him badly.
Once she has been told the truth by Frederickson, the two of them then set about patching up Sharpe, and Frederickson falls for the lovely Lucille. But fate took a hand in this romance, as Frederickson leaves the Chateau to try and find news of Ducos in Paris. Never a good idea to leave Sharpie with a pretty woman.
In the weeks that follow, Lucille and Sharpe begin to form a bond, although they both try to fight the attraction. Sharpe is feeling somewhat guilty as he is still married to Jane Gibbons, but on learning from Harper who has been to London to see Jane, that she has stolen his money and is living with Lord John Rossendale, he decides enough is enough!
There is a wonderful scene in Revenge, where Sharpie kicks down Lucille's door, and says, "Beg pardon ma'am, you forgot to leave the door unlocked!"
Their relationship deepens throughout the story, although when Frederickson finds out, he cannot bring himself to remain friends with Sharpe, but in the end sees their happiness together. By the time the Battle of Waterloo ends, both Lucille and Sharpe have decided to return to Normandy and live together. From the books, we can gather that Richard and Lucille live a long retirement richly deserved by both, and they go on to have a son Patrick and a daughter - in Sharpe's Ransom (one of the two short stories written by Bernard Cornwell under the title Sharpe's Christmas), you can feel the domesticity coming through and although sometimes Sharpe remembers his soldiering days, he is happy with his Lucille, as he says, "You cooked my goose a long time ago, girl!"