Letty

Violet, also nicknamed Letty is a character in the 1977 universe of The Hobbit. She is the half-human, half-dwarf great-niece of Thorin Oakenshield, daughter of Fili and niece of Kili and cousin of Inge, who is Frodo Baggins' wife. Her mother was a human, but is unidentified

Difference from original Princess Violet
Her mother is identified as Sigrid and her brothers are identified by name. Howevr, they are only mentioned in teh adaptation.