Epic poetry assigned Muslims over thirty invented gods

Evidence

In the Song of Roland they worshiped three gods, Tervagan, Mahomet, and Apollo; but later, by a natural process of development, they had many more. Over thirty of their gods have been counted in this literature: they form a picturesque team, including Lucifer, Jupiter, Diana, Plato, and Antichrist. — R. W. Southern, Western Views of Islam in the Middle…, 186