The Codex Regius, compiled around 1270, is the most important extant source of Norse mythology and heroic legends, written in Iceland. This manuscript preserves a wealth of ancient tales and poems that reflect the beliefs and values of the Viking Age. The Codex Regius is crucial for understanding the cultural heritage of Scandinavia and the literary traditions that have influenced modern storytelling.

The Codex Regius of the Poetic Edda, compiled in 1270, preserved the alliterative verse traditions of Old Norse skaldic and eddic poetry. This preservation influenced the revival of Germanic mythological themes in Romantic poetry, inspiring figures like Wagner and Morris, and leaving a lasting impact on modern fantasy literature.