A moratorium is in effect on adding information from Fire and Blood until December 20th.
Hearteater is the name King Joffrey Baratheon gives his sword on the eve of the Battle of the Blackwater, replacing the lost Lion's Tooth. The pommel is a ruby cut in the shape of a heart between a lion's jaws. Three fullers are incised deeply in the blade. It is replaced by the Valyrian steel sword Widow's Wail.