Otho Sackville-Baggins

Otho Sackville Baggins was a cousin of Bilbo Baggins, husband of Lobelia Bracegirdle, father of Lotho Sackville-Baggins and first cousin once removed of Lily Baggins, Frodo Baggins, and Thorin Baggins. He was always jealous of his younger cousin because he lived in Bag End and because he had Violet Greenhill as a potential wife who could bare him children. However, because Bilbo had "adopted" Drogo Baggins and his wife, Drogo was given Bag End and leader of the family.

Trivia

 * Similar to Dudley Dursley from the Harry Potter universe. The both of them hate their cousins because they have some kind of advantage over them and it is revealed that Otho (like Dudley) picked on his younger cousin and Violet while Dudley picked on Harry the entire time. However, a notable difference is that Harry and Dudley actually some-what reconciled.