Cardinal (Catholicism):

While the incumbents of some sees are regularly made cardinals, and some countries are entitled to at least one cardinal by concordate (usually earning its primate the cardinal's hat), no see carries an actual right to the cardinalate, not even if its bishop is a Patriarch.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". Which bishop carries an actual right to the cardinalate?
unanswerable