Kinslaying

"We are kin. Stark and Karstark.[...] Kill me and be cursed."

- Lord Rickard Karstark to King Robb Stark, his distant kin.

Kinslaying is the act of slaying a family member and a great taboo in the Seven Kingdoms. Whoever commits it is dubbed a kinslayer. Any individual who slays a member of their own family is believed to be cursed forever in the sight of gods and men.

Known and alleged kinslayers

 * Aegon II Targaryen, who fed Rhaenyra Targaryen, his sister, to his dragon.
 * Ser Gregor Clegane, suspected to have murdered his infant sister as well as his father.
 * Craster, who sacrifices his malke offspring to the White Walkers.
 * King Stannis Baratheon, who conceives a shadow assassin with Melisandre to kill his brother Renly
 * Ser Jaime Lannister, who murders Alton Lannister, his distant cousin, in his attempt to escape captivity.
 * King Robb Stark, is accused of it by Lord Rickard Karstark when the former is about to execute the latter.