Gramma Toadstool

Grandma Toadstool (or Gramma) is the grandmother of Princess Peach Toadstool. She first appeared on The Super Mario Bros. Super Show!, then went on to make an appearance in Super Mario RPG: Legend of the Seven Stars. She is presumably the mother of King Toadstool.

The Super Mario Bros. Super Show!
Gramma Toadstool was a minor character on The Super Mario Bros. Super Show!, where she was depicted as a human, much like her granddaughter. Gramma Toadstool's only appearance on the show was in the episode "Little Red Riding Princess", where she was shown to live in a cottage in the Mushroom Woods.

Prior to the events of the episode, Gramma had fallen ill, prompting Princess Toadstool, to pay her a visit, along with Mario, Luigi and Toad. Due to the fact that King Koopa had stolen all the firewood from the local village, Mario, Luigi and Toad stayed behind to gather more, while Princess Toadstool ventured on to visit Gramma.

Meanwhile, Gramma's firewood was running low, when King Koopa, dressed as a messenger, tricked her into thinking that she had won a year's supply of wood, and convinced her to go into town to claim it, so that he could dress up as her and trick Princess Toadstool once she arrived. King Koopa's plan nearly worked, although Princess Toadstool escape from the cottage while Pine explained to Gramma that everyone's firewood had been stolen. Mario, Luigi and Toad told Gramma to stay behind while they went off to rescue Princess Toadstool, but their absence allowed three for Koopa Troopas to kidnap her.

After King Koopa kidnapped Princess Toadstool, he and his Koopa Troopas brought her and Gramma to his lair in a nearby cave, where he had been hoarding everyone's firewood. However, Mario, Luigi and Toad wore the Big Bad Wolf's spare winter coats to scare off King Koopa, as the Big Bad Wolf wanted to get back at him for fighting with him earlier on.

With everyone's firewood restored, Pine explained that everyone would be able to keep warm for the rest of the season. Gramma then thanked Princess for visiting, and suggested that maybe next time, she should come and visit her instead. Princess Toadstool responded by giving Gramma a kiss.

Super Mario RPG: Legend of the Seven Stars
Grandma Toadstool made her second, and currently latest appearance in the game Super Mario RPG: Legend of the Seven Stars. During the game, Grandma Toadstool dresses up as the princess so Peach can sneak out of the castle and join Mario on his adventure to defeat Smithy and recover the seven Star Pieces.

Grandma Toadstool is depicted as a Toad in this game, which may mean that Peach is not fully human. In fact, it may mean that Princess Peach is at least one-fourth Toad. Of course, the word "Grandma" could merely be a term of endearment used by Peach, not describing an actual blood relationship. She and Peach are the only ones who know about Toadstool's ???.