The earliest description of medieval magicians comes from France from the 2nd half of the 12th century:
"When the whole court was gathered, they called all the entertainers in the region together.
Whatever his specialty was, everyone wanted to be there.
There is great joy in the room. Everyone announces what they can do.
Who hoops, who jumps and who conjures, "one flute the other makes music..."
Walter van der Vogelweide (c. 1170-1230) writes in one of his verses:
"Many that one sees are like jugglers. handy and practiced tricks and deception.
So one says: Look! What's under this hat?
Now lift him up, there's a hawk with a defiant spirit
Lift it up again and you'll see a proud peacock
Lift him up again and there's a sea monster!"
The following beautiful lines are from the beginning of the 13th century:
"The other, through magic, makes several deceptive images appear
and defy the eyes with the dexterity of his hands."