If batman got married he'd have bat babies.
But i doubt he'd get married...
He would know all the same people he knew before he got married.
The Joker would not invited.
He is a fictional character and this is not possible.
Batman is fake, so he's not married
His butler, Alfred Pennyworth, would be invited.
The Batman got is power with power of his strong will power
cat women, penguin, joker, bane
you and any norrmal citizon also anyone he is an enemy of
what?
China
She maried Superman, but had an affair with Batman and green lantern (Spiderman was jealous.), HULK got angry and smashed some stuff.
Any one of the rogue gallery would not get an invitation, but if you were to choose, highest on that list would be the Joker.