Brian Holguin & Steve Niles 
Spawn The Dark Ages: The Complete Collection [PDF ebook] 

Spawn: The Dark Ages introduces Lord Covenant, a 12th Century knight killed in a holy crusade far from his homeland, who returns to Earth as a Hell Spawn. As a plague of violence and turmoil cover the English countryside, the Dark Knight must choose whether to align himself with the innocent inhabitants of the once-thriving kingdom or with the malevolent forces of evil and corruption.