Which famous medieval works were written in Old Norse?

Many famous medieval works were written in Old Norse, primarily preserved in manuscripts from Iceland. These works include:1

• The Eddas: The Prose Edda (or Younger Edda), written by Snorri Sturluson around 1220, serves as a vital textbook on poetics and mythology. The Poetic Edda (or Elder Edda) is a collection of anonymous mythological and heroic poems composed between 800 and 1100, featuring works like the Völuspá and Hávamál.21
• Sagas: These include the Heimskringla, a collection of Norwegian kings' sagas also attributed to Snorri Sturluson. Other notable sagas include the Ólafs saga helga, Hungrvaka, Ágrip, Fagrskinna, and Morkinskinna.34
• Historical Works: Early historiography includes Ari Thorgilsson's Íslendingabók (The Book of the Icelanders) and the Landnámabók (Book of Settlements).5

These texts remain the primary sources for understanding Germanic mythology and the history of the medieval Scandinavian world.21