"Frithiof's Saga" is a 19th-century epic poem written by Swedish author Esaias Tegnér. It tells the story of Frithiof, a heroic Viking warrior, who is in love with Ingeborg, the daughter of a king. The saga explores themes of love, honor, and the conflict between personal desires and societal expectations. The narrative follows Frithiof's adventures as he faces challenges, including battles and quests, to win Ingeborg's hand. The poem is notable for its romantic elements and its reflection of Norse mythology, making it a significant work in Swedish literature and a classic representation of the Viking age.