Question: who is knight of the laughing tree?
Answer: The Knight of the Laughing Tree was a mystery knight who fought at the tourney at Harrenhal in 281 AC. ... The Knight of the Laughing Tree is so-called because of the blazon on his shield, a smiling weirwood. His true identity remains unknown. According to a semi-canon source, the bullied crannogman was Howland Reed.