Every day of the year is the feast day of several saints in France or anywhere else in the world.
Yes. They are the same saints that are honored by the Universal Church. Some towns may honor some saints locally that are not recognized universally.
la Toussaint
Yes, St. Denis is one of several patron saints of France.
As of January 1, 2012, the Church of Jesus Christ of Latter-day Saints (the "Mormon" church) reported 36,403 baptized members in France. The population of France was reported in 2011 to be 65,436,552. This means 0.05% of the population of France is Mormon, and 0.25% of all Mormons live in France.
Yes, there are many, many women canonized as saints.
For a clickable list of all the French saints, click on this link. The number changes now and then as new saints are canonized so I will not give you a number.
There are many songs about saints but my favorite is For All the Saints which was written by William How.
No, there are saints from almost every country in the world.
For a complete list of Irish saints, click on this link. There are many of them.
There are five currently, Saints Row, Saints Row 2, Saints Row: The Third, Saints Row IV, and Gat out of Hell.
Many of the saints of the Middle Ages were missionaries. But saints came from all classes of life and did many very different things.