The Tale of King Coustans the Emperor

THIS tale telleth us that there was erewhile an Emperor of Byzance, which as now is called Constantinople; but anciently it was called Byzance. There was in the said city an Emperor; pagan he was, and was held for wise as of his law. He knew well enough of a science that is called Astronomy, and he knew withal of the course of the stars, and the planets, and the moon: and he saw well in the stars many marvels, and he knew much of other things wherein the paynims much study, and in the lots they trow, and the answers of the Evil One, that is to say, the Enemy. This Emperor had to name Musselin; he knew much of lore and of sorceries, as many a pagan doth even yet.

Now it befell on a time that the Emperor Musselin went his ways a night-tide, he and a knight of his alone together, amidst of the city which is now called Constantinople, and the moon shone full clear.