 The subject matter of the oldest Dutch folk songs (also called ballads, popular songs or romances) is very old and can go back to ancient fairy tales and legends.In fact, apart from ancient tales embedded in the 13th century Dutch folk songs, and some evidence of Celtic and Germanic mythology in the naming of days of the week and landmarks (see for example the 2nd century inscription to goddess Vagdavercustis), the folk tales of the ancient Dutch people were not written down in the first written literature of the 12th century, and thus lost to us.One of the older folk tales to be in a song is "Heer Halewijn" (also known as Van Here Halewijn and in English The Song of Lord Halewijn), one of the oldest Dutch folk songs to survive, from the 13th century, and is about a prototype of a bluebeard.