Tyr

Tyr is the Norse Aesir god of courage, law, and trial by combat, as well as the father of Thomas Jefferson Jr.. He is famous for sacrificing his right arm to keep the ferocious wolf Fenris bound.

Appearance
Tyr is missing his right arm, as it was bitten off by Fenris Wolf centuries ago.

Trivia

 * Tuesday (originally Tyr's Day) is named after him.
 * Tyr is destined to be killed during Ragnarök by Garm, the blood-stained guard dog of Hel.