Mungo Baggins was a hobbit of the Shire, the grandfather of Bilbo and the great-grandfather of Frodo.
Biography
Mungo was the eldest son of Balbo Baggins and Berylla Boffin. Mungo had four younger siblings: Pansy, Ponto, Largo, and Lily. Mungo married Laura Grubb and had five children: Bungo, Belba, Longo, Linda, and Bingo.
In adaptations
The Hobbit film trilogy
In the first film of Peter Jackson's The Hobbit film trilogy, Mungo is referred to as Grandpa Mungo by Bilbo Baggins when he identifies a chair belonging to him in the possession of Glóin. Just as Bilbo is about to order him to take it back, he gets sidetracked when Óin brings in another one of Mungo's antique chairs. Bilbo then drives him back, demanding that he puts the chair back where he got it because it is "not for sitting on". It is untold if Bilbo was successful or not.