The "Siegfried" class was a group of six coastal defense ships built by the German "Kaiserliche Marine" ("Imperial Navy") in the late 19th century.
 The ships were intended to protect the German coastline from naval attacks.
 The class comprised the lead ship "Siegfried" , along with her sisters "Beowulf" , "Frithjof" , "Heimdall" , "Hildebrand" , and "Hagen" .
 All six ships were named after Norse mythological figures.
 Two further vessels, the "Odin" class , were built to a similar design but were not identical.
The Fearless Defenders was an ongoing comic book series published by Marvel Comics that debuted in February 2013 as part of the company's Marvel NOW!
 initiative.
 The series, written by Cullen Bunn with artwork by Will Sliney, centered on the Valkyrior, a team of female superheroes led by Valkyrie and Misty Knight.
 Despite favorable reviews from critics, the series ended in December 2013 after thirteen issues due to poor sales.
Valkyrie is a fictional superhero appearing in American comic books published by Marvel Comics.
 The character was created by Roy Thomas and John Buscema, based on the Norse mythological figure Brynhildr.
 The character first appeared in "The Avengers" #83 (December 1970) and has become a mainstay of the superhero team known as the Defenders.
 An Asgardian by birth, Valkyrie, also known by her real name, Brunnhilde, was selected by Odin to lead the Valkyrior.
 Among her other aliases are Barbara Denton-Norriss, Samantha Parrington, Sian Bowen, and Annabelle Riggs who were all host bodies to the spirit of Brunnhilde.
 Samantha Parrington, a previous host of Brunnhilde, later received Valkyrie's powers and became a member of the Defenders herself.
 An ally and one-time love interest of Thor, she was ranked 30th in IGN's list of "The Top 50 Avengers", and 65th in "Comics Buyer's Guide's" "100 Sexiest Women in Comics" list.
Likhoradka (Russian: "Лихорадка", Serbian: "Милоснице" or "Milosnice") or tryasavitsa is a female spirit in Slavic mythology.
 Likhoradka was purported to be able to possess a person's body and cause sickness.
 In some tales, she is considered a creation of the dark deity Chernobog.
 Later Russian legends describe 12 Likhoradkas, with individual names associated with special illnesses.
 In modern Russian, the word likhoradka has obtained the meaning "fever".
 As a mythological figure, Likhoradka was related to the figure of Chuma, which in modern Russian is the term for plague.
 Likhoradka was sometimes portrayed as a tall woman with dishevelled hair, a pale face and a white dress, who brought sickness to people she tried to touch or to kiss.
Thor (Thor Odinson) is a fictional superhero appearing in American comic books published by Marvel Comics.
 The character, based on the Norse mythological deity of the same name, is the Asgardian god of thunder and possesses the enchanted hammer Mjolnir, which grants him the ability of flight and weather manipulation amongst his other superhuman attributes.
The orthography of the Old Norse language was diverse, being written in both Runic and Latin alphabets, with many spelling conventions, variant letterforms, and unique letters and signs.
 In modern times, scholars established a standardized spelling for the language.
 When Old Norse names are used in texts in other languages, modifications to this spelling are often made.
 In particular, the names of Old Norse mythological figures often have several different spellings.
A superhero (sometimes rendered super-hero or super hero) is a type of heroic stock character who possesses supernatural or superhuman powers and who is dedicated to fighting crime, protecting the public, and usually battling supervillains.
 A female superhero is sometimes called a superheroine (also rendered super-heroine or super heroine), although the word superhero is commonly used for females also.
 Superhero fiction is the genre of fiction that is centered on such characters, especially in American comic books since the 1930s.
Will Sliney is an Irish comic books artist.
 He is known for his work on comic books such as the "Marvel's Fearless Defenders " series as well as the best selling graphic novel "Celtic Warrior: The Legend of Cú Chulainn".
 He may be best known for his work on "Spider-Man 2099".
The Valkyrior is a fictional organization that appears in American comic books published by Marvel Comics.
 Based on the Valkyries of Norse mythology, the group, created by Stan Lee and Jack Kirby, first appeared in "Thor" #133 (October 1966).
 Within the context of Marvel's shared universe, the Valkyrior is a group of female warriors led by Brunnhilde / Valkyrie that was originally designated by Odin to bring the souls of slain heroes to Valhalla.
 In 2013, the team became the subject of the short lived series, "The Fearless Defenders".
Mapui Kawlim (alias Wingstar) is a superhero appearing in the Indian comic book "Tinkle".
 It was created by Sean D′mello and Artist Vineet Nair.
 It made a debut on the 35th anniversary issue of the comic book, issue number 639 released in November 2015.
 It is the first superhero from Mizoram.
 The name "Mapui" is a popular pet name among the Mizo people.
 The character originates from Aizawl, the capital city of Mizoram.
 She is the first female superhero from northeast India in the series of "Tinkle".
 The editor Rajani Thindiath described it as a "reluctant superhero" but "has the potential to be the most iconic female superhero characters in Indian comic history."
 She acquires super flight and super strength from gadgets developed by her inventor-father.

Question: What Norse mythological figure is the basis for the lead female superhero in Fearless Defenders?
Answer: Brynhildr