Frigga

Queen Frigga is a fictional protagonist in the Marvel Cinematic Universe, being a supporting character in the 2010 film Thor, its 2013 sequel Thor: The Dark World, and the 2019 film Avengers: Endgame.
She was the queen of Asgard and wife of its ruler Odin, mother of Thor and also the adoptive mother of Loki, who is also the son of the Frost Giant king Laufey. She was known for her supportive and comforting care, showing compassion towards Loki after his treachery, and for the mortal Jane Foster when Thor brought to Asgard. Frigga sacrificed herself to protect Foster from the Dark Elves causing Odin to mourn her death and declare war against Malekith. Thor would meet his mother again when he time-traveled to 2013 to collect an Infinity Stone, and would give him the confidence he needed to undo the decimation.
She was portrayed by Rene Russo.