It's intentionally tongue-in-cheek, which is something I began doing in act three onward (and on into v3). And don't forget about ancestry.com. That kind of search will be a simple lookup in a few years. Also, the Queen of England is known to be a descendent of King David (now that's cool!).
If I get rid of the tweeting, I would drop US president too. Technically, you would expect that the president's real name be given in such an essay/article anyway, so that was a known weakness to the writeup. I kind of like Bombast, though, so that begs the question who better than Trump for that role? It should have the potential to be based on someone real without coming right out and saying it. It helps if they're dead, so I can't get sued.
I was originally going to use Bishop Bling, but that's already taken. $30M to renovate a church?! Might as well rebuild St. Peter's Basicala.