I also found a beautiful illustration in a book of mine from 1840, showing the sleeping Chriemhilt (also known as Kriemhild) from the Nibelungenlied. This book was published with the Middle High German, so the spelling is different. The Nibelungenlied is an epic poem recounting the life of Siegfried the dragon slayer, his eventual murder, and his wife Kriemhild's revenge. The Nibelungenlied also served as the source material for Richard Wagner's opera, The Ring of the Nibelung.
The illustration was drawn by Julius Huebner and rendered as a woodcut by F. Unzelmann. The illustrations in this special celebration edition, are all very intricate and beautiful. I will feature more of them in the near future.