Der Rote Baron

Cover art created for a board game called "Blue Max". The Red Baron was never shot down, but he died after being shot by a single .303 bullet.
It entered from below the aircraft, through his ribs, through the heart, and the bullet had then just enough energy left to leave his torso and was found later inside his tunic.
He remained alive to land the aircraft intact, and died virtually after the landing.
The shot was not from an aircraft, although a couple of allied countries tried to claim his death as an aerial victory by one of their own pilots.
He was shot by Australian soldiers from the 4th Machine Gun battalion.
The initial confusing factor was that both Aircraft and Soldiers used the same type of ammunition, the .303.