Hildegarde is a fictional character in the Marvel Universe

Marvel Universe

The Marvel Universe is the shared fictional universe where most comic book titles and other media published by Marvel Entertainment take place, including those featuring Marvel's most familiar characters, such as Spider-Man, the Hulk, the X-Men, and the Avengers.The Marvel Universe is further...

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Fictional character biography

Hildegarde is one of the Valkyries

Valkyrior (Marvel Comics)

-Fictional group history:The Valkyrior are warrior goddesses of Asgard who ride winged horses. Originally, under the leadership of Brunnhilde, they took mortally wounded human heroes from German and Scandinavian battlegrounds and brought them to Valhalla, an area of the Asgardian dimension where...

. Thor

Thor (Marvel Comics)

Thor is a fictional superhero who appears in publications published by Marvel Comics. The character first appeared in Journey into Mystery #83 and was created by editor-plotter Stan Lee, scripter Larry Lieber, and penciller Jack Kirby....

 sent Sif and Hildegarde to Blackworld

Blackworld

-Publication history:Blackworld first appeared in Thor #195 and was created by Gerry Conway and John Buscema.-Fictional history:...

. There, they came upon a town where people were fleeing in blind terror from Ego-Prime, which was created accidentally from Ego the Living Planet

Ego the Living Planet

Ego the Living Planet is a fictional character, a supervillain in the Marvel Comics Universe. The character first appeared in Thor #132 and was created by writer Stan Lee and artist Jack Kirby.-Publication history:...

 by Tana Nile

Tana Nile

Tana Nile is a fictional character in the Marvel Universe.-Fictional character biography:Tana Nile, of the planet Rigel-3, was a leading female member of the Colonizers of Rigel. In her attempt to colonize the planet Earth, Tana Nile took a human form as Jane Foster's roommate. Tana took control of...

. Sif and Hildegarde joined forces with Tana Nile, and escaped with her to Earth. Ego-Prime came to Earth, and the Asgardians battled him, and Odin sacrificed Ego-Prime to transform three people into Young Gods

Young Gods (comics)

The Young Gods are a fictional group in the Marvel Comics universe. They are a group of twelve young human beings who were chosen by the major pantheons of Earth's goddesses to represent the finest qualities of humanity and the pinnacle of mankind's genetic potential and cultural...

. The Asgardians, including Thor, Sif, and Hildegarde, were banished to Earth for a time for questioning Odin's actions during these events. Hildegarde accompanied Thor for a while before returning to Asgard.

Hildegarde, consulting with the Vizier, would be one of the first to realize Odin had vanished from Asgard.