I can understand countries that still have a monarchy. They need kings and queens and princes and princesses and stuff. But, how do these "royal" families in the deposed places keep on going? Who pays for these delusions of grandeur? Maybe they all still have power behind the curtain or something?
It is almost the oldest equation on Earth... those with Titles marry those with Money.
Many daughters of American industrialists married into the European aristocracy, and gave those impoverished titles and influx of huge wealth.
They have absolutely no power in France