Monstermama in Super Mario RPG: Legend of the Seven Stars.
Monstermama is an elderly Toad and the founder of Monstro Town. Monstro Town is a village populated by various reformed monsters in Super Mario RPG: Legend of the Seven Stars.
In many fan-fictions, Monstermama is said to be dating Toadsworth, even though they have never been featured in a game together.