Cardinals according to the concordat are "Princes of the Blood" even though Italy now is a republic.  Since they are citizens of the Holy See, they maybe should let the Italians decide this.

Since my name is from the ancient MacDonald Clan, I take umbrage over the suggestion that a McDonald restaurant is not good enough for Rome.  Also, I noted the comment by a woman who works in the Vatican and supports this restaurant. I am sure there are other choices for eating in the area so let the customers decide.