Do we know of anyone who was a regent/consort of two SEPARATE polities during two distinct periods, like Eleanor? As opposed to simply acquiring more titles? The only one I can think of is Margaret I, who was consort of Norway, then regent of Denmark. And then swiftly reacquired Norway and Sweden. So she was technically "of Norway" and "of Denmark" without being of both for some time. I think Kublai Khan could just barely work as well because he up and moved to China after conquering it and basically "became" Chinese. So we could argue that he was no longer "Mongolian" after the switch. I'm coming up short on others, though. I think Charlemagne could comfortably lead from both Aachen and Rome, even if he ruled both at the same time, because they actually were different polities before the formation of the HRE. But everyone else I'm coming up short justifying why they should lead countries that they only incidentally inherited or conquered by force, and as a consequence aren't really associated that strongly with as a national figure.