Beowulf springs to mind when we think of deformed monsters and beings in medieval literature, but this concept of deformity is widespread throughout medieval lit in general: dragons, horrible beasts, deformed beings, etc. Many of these we will start looking at this week!
Do not fall into the trap, as so many do, of thinking that this is all born of superstition: it is not. Sure, some people back then may have thought dragons were real, just as many people today think politicians are lizard people. But by and large, and as a general rule, these deformed creatures and monsters are apophatic symbols.
Check out the following: it's a picture of a "Blemmye" and see if you can find out what the apophatic nature of such a creature was...and share your ideas here.