One thing we will never know, it seems, if how convincing Elder Willard was when he went to France to convert the French to the Church of Jesus Christ of the Latter Day Saints.
There are four or five dozen Parisian Saints and hundreds of French saints.
France's Patron Saint is NOT, Ste Joan of Arc, but Saint Denis (sometimes known as Sidney in English).
His story is rather impressive if one believes it:
Saint Denis (also called Dionysius, Dennis, or Denys) is a Christian martyr and saint. In the third century, he was Bishop of Paris. He was martyred in connection with the Decian persecution of Christians, shortly after A.D. 250. After his head was chopped off, Denis is said to have picked it up and walked ten kilometres (six miles), preaching a sermon the entire way, making him one of many cephalophores in hagiology. He is venerated in the Roman Catholic Church as patron of Paris, France and as one of the Fourteen Holy Helpers. The medieval and modern French name "Denis" derives from the ancient name Dionysius.
I suppose Italy would have been even more difficult. They have a saint for every village there, almost.
There are no Mormon saints reputed to have managed to say anything after being beheaded. I am not sure that anyone has ever beheaded a Mormon, come to think of it.
In Paris, you sometimes see on people's doors a statement "in this home, we are all members of the Holy Roman Apostolic Church. We are not interested in missionaries of other faiths".
Most Parisians are more or less agnostics, I have read.
Back in Mitt's day, the LDS did not seek to convert Black people, as the revelation that they were eligible to become elders had not made it down to the Prophet.