Blackthorne

Baron Blackthorne was a Westmarch nobleman. He led his knights to prevent the escape of King Leoric's forces during their attack against Westmarch, forcing them to choose between surrender and death in the quagmire. He earned the Duncraig Cross for his efforts.

In-game
Blackthorne is referenced in the Blackthorne's Battlegear item set in Diablo III.

Trivia

 * Blackthorne is possibly named in reference to Blackthorne; a cinematic platformer developed by Blizzard Entertainment.