Pourquoi…Why?

How did the cabaret Moulin-Rouge get its name?

The Moulin-rouge was created in 1889. But the name goes back to March 30, 1814 when it was a symbol for Montmartre. The Battle of Paris took place between the Sixth Coalition (Russia, Austria, and Prussia) and the French Empire. After a day of fighting in the suburbs of Paris, the French surrendered on March 31, ending the and forcing Emperor Napoleon to abdicate and go into exile — Wikipedia

The hill of Montmartre being a strategic point, the Russians wanted it. Defending the family mill, three of the Debray brothers were killed. The fourth resisted and killed a Russian officer who ordered the attack. The Russian soldiers became so angry, they cut up the miller and placed his body parts on the wings of the family’s windmill. The mother of the slain brothers put up a small red windmill on the tombs of her sons. The Calvaire cemetery on Montmartre is only open November 1.

Why is there a figurine on top of wedding cakes?

The origin of putting a decoration on top of a wedding cake dates back to Antiquity. In Greece, the figurine was placed on a large piece of bread for the occasion. The guests took the cake and sprinkled crumbs over the heads of the newly married couple to ensure fertility and happiness. The practice began in France  during the Middle Ages. Eventually the cake gave way to the small cakes or pastries. The higher the cake the longer the marriage. In the 19th century, Antonin Carême revolutionized the concept for high society by introducing choux pastry, or pâte à choux, a light pastry dough used to make profiteroles, croquembouches, éclairs, French crullers, beignets, St. Honoré cake…Wikipedia

How did le Croque-Monsieur get its name?