In season 4, Joffrey gets his undeserving mitts on one of the two blades made from Ned Starks great sword Ice, which was melted down, re-forged, and given to the King and his uncle Jaime. He asks the people what he should name it, because obviously every great sword needs a name, and settles on Widows Wail. Its a pretty suitable name, sounding exactly like youd expect from a little-bitch-pretending-hes-tough like Joff. Before that though a couple of names are shouted out: Stormbringer and Terminus. The former was the name of the weapon wielded by Elric of Melniboné in Michael Moorcocks fantasy saga, while the latter is a reference to Terminus Est, the blade belonging to Severian, the protagonist in Gene Wolfes The Book of the New Sun. Both, interestingly, are executioners swords.