Was watching a movie on Louis deMontfort (think that's right) last night. The last words in the movie was of his falling asleep in the Lord. I think it goes to your question (yeah, I found them online)...
For several days he lay there dying with a statue of the Blessed Virgin in one arm and the indulgenced crucifix given him by Pope Clement XI in the other. He gave his last will and testament, asking that his heart be buried “under the steps of the altar of the Blessed Virgin.” On the following day, April 28, 1716, Satan made a final desperate bid, to which Saint Louis retorted loudly, “You attack me in vain; I stand between Jesus and Mary. I have finished my course. I shall sin no more.” With that the soul of Saint Louis Marie de Montfort was taken into Heaven. And his entire body was laid to rest beneath the altar of the Queen he loved so much.
"I HAVE FINISHED MY COURSE. I SHALL SIN NO MORE"