parricide

Someone who kills a relative, especially a parent.

I told him the reuenging Gods, / ’Gainst Paricides did all the thunder bend […]

Someone who commits treason.

The killing of a relative, especially a parent.

The new accusation brought by Urban against Manfred of murdering his sister-in-law's embassador – it may be observed that, tacitly, he acquits him of parricide, fratricide, and nepoticide – requires a little explanation.

The production of Schiller’s ‘Don Carlos’ was long forbidden, because Don Carlos loved his stepmother; in ‘The Robbers,’ the Father was turned into an uncle, and a stupendous effect was produced by the cry of “Unclecide,” substituted for Parricide.

The killing of a ruler, or other authority figure; treason.