Retcon article(covers information that was retroactively changed)
Miss Piggy was a Human who was kin to descendants of Clare Raymond. She appeared to be Kermit T. Frog's spouse.
Piggy's name was visible on a computer display of the Raymond family's genealogy. (TNG: "The Neutral Zone", okudagram)
The names Kermit T. Frog and Miss Piggy are references to the Muppet characters of the same name.