I'm sure this has been asked before, but I can't find any answer: If Albert has no legitime issue, Andrea will most probably take the throne. And if so, he will have to change his surname to Grimaldi and become Andrea Grimaldi, or will he remain his last name and add the dynastic family name and become Andrea Casiraghi - Grimaldi? and his issues? will their children have to be "[put name here] Grimaldi" or "[put name here] Casiraghi - Grimaldi?"
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