Any individual who slays a member of their own family is believed to be cursed forever in the sight of gods and men. Whoever commits it is dubbed a kinslayer. Kinslaying is the act of slaying a family member and a great taboo in Seven Kingdoms. Are you a lord if you kill your father?' - Tyrion Lannister, still in shock after killing his own father Tywin. Varys: ' My lord?' Tyrion Lannister: ' I don't think I am anymore - 'a lord'.