Heer Halewijn
Heer Halewijn (also known as Van Here Halewijn and Jan Albers, and in English The Song of Lord Halewijn) is a Dutch folk tale which survives in folk ballad. Although the first printed version of the song only appears in an anthology published in 1848, the ballad itself is first written down in the 13th century but dates back to pre-Christian times and is one of the oldest Dutch folk songs with ancient subject matter to be recorded. The story of lord Halewijn itself is even older and contains elements going back to Carolingian times. Many of its mythemes range back to Germanic pre-Christian legends.
The song's subject matter is similar in many respects to several Germanic songs circulating in the Middle Ages Europe, notably close to the English ballad May Colvin or False Sir John and its variations, Lady Isabel and the Elf Knight. The legends may have been the prototype of the Legend of Bluebeard.