Kyrie Haddock (Books)

Valkyrie Sigrid "Kyrie" Haddock is the only daughter of Valhallarama and Stoick the Vast and the human sister of Hiccup Horrendous Haddock the Third and is also is named after her maternal ancestor, Valkyrie and also her maternal grandmother, Sigrid,  and granddaughter of Old Wrinkley, the Hairy Hooligan's healer and soothsayer.

Biography
Valkyrie was born to Valhallarama and Stoick the Vast. Unlike her wimpy brother, Valkyrie did not have much muscle, but was actually pretty strong, and not considered different lik eh her brother, but Kyrie didn't care what her brother looked like. Sometimes he used to tease her and Kyrie says he pushes her around too much, depsite the fact that Hiccup just does it because he worries for his "little sister constantly", which is what annoys Kyrie even more.