Daniel von dem blühenden Tal (Daniel of the Flowering Valley) is an Arthurian romance composed around 1220 by the Middle High German poet Der Stricker, who claimed he had received the story from a French troubadour. It tells how Sir Daniel, heir to the kingdom of Blumenthal, becomes a Knight of the Round Table and engages in fantastic adventures to defend King Arthur's land from an enemy ruler.
Arthur welcomes Daniel to the Round Table after he defeats other formidable knights including Sir Percival and Sir Gawain. Before long, however, a herald in the form of an invincible giant riding a camel arrives with a message from an enemy potentate, King Matur. The herald demands Arthur swear immediate fealty to Matur, explaining that his country is defended by the contrivances of an inventor who has created a mobile palace carried by war elephants, invincible giants (of whom he is one), and a mechanical dragon whose scream is so intolerable that it makes even the staunchest fighting men cover their ears, rendering them useless. On the other hand, Matur’s herald says submission to his master brings its attractions. The land is fertile, the conditions of vassalage are light, and the women