This is a book that I started reading in 5th grade, but never finished. It must have been published in 1972 or earlier. It was wildly popular in my school library.

It was set in the Middle Ages, I think. One of the main characters was a court jester. The setting was very pastoral. Many scenes take place in a forest. There was also a situation in which several people were dreaming the same dream.

This has been haunting me for a long time. Would love  to find and finish this book. Thank you!