OK, let’s see where to take this. What if there was a gay relationship between Donny Cerna-Avila and Leslie Rojas-Cartagena. If Leslie took Donny’s name in marriage, would he become Leslie Rojas-Cartagena-Cerna-Avila?
I don’t know who the champ of hyphenated names would be. Hispanic cultures use the combination names, but also truncate the combination at a sensible place. It isn’t like the “dashing” names of nouveau-America.