Selma Bouvier

One of Marge Simpson's two (twin) sisters. She owns an iguana named Jub-Jub, an pet inherited from her grandmother.

She's also been married numerous times, though I can only think of Troy McClure and "Sideshow" Bob Terwilleger or Sideshow Bob.

Selma lacks a sense of taste and smell, and is distinguished from her twin Patty by the part in her hair, her S-shaped earrings, oblong necklace beads and light-blue dress.

Sideshow Bob and Troy McClure are the only husbands there have been episodes about, but according to the episode where Apu nearly gets deported, she seems to have married Lionel Hutz at some point:

Homer: (on phone) Hello, Selma? Selma my dear, how are you? ... Uh-huh, uh-huh, uh-huh. Listen, shut up for a second. How would you like to marry Apu so he doesn't get deported?

Selma: I'd rather eat poison. My name's already Selma Bouvier Terwilliger Hutz McClure. God knows it's long enough without Nahassapeema-whatever. From now on, I'm only marrying for love ... Mmm, possibly once more for money.