The Norse goddess known for her dual role in war and wisdom is Odin’s wife, Frigg (or Frigga). She is revered for her knowledge and foresight, often associated with domesticity and protection, as well as the fierce aspects of battle. Frigg's duality showcases the intertwining of nurturing qualities with the harsh realities of conflict, emphasizing the complexity of femininity in mythology. Her character reflects the balance between domestic life and the unpredictable nature of war, which is a prevalent theme in Norse tales.