Grommash "Grom" Vigilance is the chieftain of the Bladestorm clan, and the best swordsman amongst the entire orc race. He is the only orc who is able to wield elvish steel quite handedly well to the embarrassment of all elves. Fortunately, or unfortunately, he prefers the Dragonborn steel weapons, as they are much more flexible and durable.
"Grommash" means "The Giant's Heart" in orcish. Vigilance was his nickname given to him during childhood. He earned the name when he was vigilant and stopped an elf raid on his home compound in time. He is loyal to his friends and family, and he doesn't like bullies. No matter who they are. He will always fight for the little guy and do what is right.