Lily Munster
In one universe, Frankenstein's Monster, settling down under the name of Herman Munster, did so with a Vampire wife, Lily Munster. Junter was aware of her existence when he visited the Munsters' house while looking for a new apartment, although during this visit, he only met Herman and the Munsters' son Eddie. He was confused as to how a “monster” and a vampire had produced a son who was neither, but, instead, a werewolf, although he did not voice this confusion. (COMIC: Real Estate-Related Pun)
Behind the scenes
Lily Munster, who is only alluded to indirectly in the Necroomies comic strip Real Estate-Related Pun, is one of the (copyrighted) protagonists of The Munsters. Her maiden name was “Dracula”, as she was, in fact, the daughter of the series' continuity's version of Count Dracula himself.