Hrodgaerda is one of the higher ranking huscarls of Skule Skullcleaver, jarl of Jelling and thus an antagonist in the game. She is present during The Feast in honour of the former thegn of Skjern. After defeating the Erlingsons who disrupted the funeral feast, she will talk shortly to the player about the pleasure of killing enemies before returning to the longhouse.
During the first act, she hired a skilled group of assassins to kill the player character. She undertakes no other actions to sabotage the quest of the Thegn of Skjern.
Second act[]
In the second act, you encounter her in the quests Ravaging of the Wretched Heathens and The Battle of Yngilwood. In the first quest, you have to fight alongside her during the raid of Lindisfarne. During the Battle of Yngilwood, you have to fight against her, since she joined Osred's forces. She can't be killed during the battle and she will escape afterwards, despite her injuries.
In case you encounter her first in Yngilwood and encounter her again during the raid, she doesn't talk about her earlier lost battle.
Third act[]
In the third act, she will attack your homestead after the thegn of Skjern successfully defends its claim on Skjern from Skule in The Althing. This time though, she can be killed during the assault. In case she is kept alive during the battle, it is possible to kill her afterwards. She can also be convinced to serve you, but you must kill Skule since she will serve until either her death or his.