The Black Knight

"Few survive an encounter with the most Feared Warrior in Tamriel"

"Escape is the only chance of survival."

The Black Knight is the Main Antagonist of The Rise of The Black Knight Story Line

he is an extremely powerful and ruthless warrior

once an imperial soldier the unnmaed warrior that would go on to become the black knight, served the empire as well as King Gronar Iron-hand before his own lust for Power consumed him.

he Would go on to VANISH off of the face of Tamriel for a while until suddenly resufacing, now wearing his own unique armor that he apperantly crafted himself along with a traditional knight's helmet he would go on to adopt the name the Black Knight and take refuge in the abandoned Castle Volkihar turning the Castle into his Personal Fortress and even adding a Throne Room

he would later go on to Become the Deadliest Warrior in the Province of Skyrim, terrorizing the 9 holds eventually Raising an Undead Army using Magic of The Dark Arts by Releasing a Plague that would turn anyone infected by it into his undead minions in an Attempt to Conquer the Province and Take it for his own personal gain

Physical
The Black Knight is a Bit Taller than any other citizen of Skyrim and Can Be Seen Towering Over The Lone Warrior whenever he encounters him.