As an aside, when I was a youngster, you had to recite that letter word perfect to get into our club.
Of course, there are several translation versions floating around, but our favored version was published in Ripley's Believe It or Not.
The man writing is probably a monk, serving as the cheiftain’s scribe. I think the chief is in the black hat, directly behind him. Everyone else, of course, is roaring with laughter.