Queen Helaena the Cruel

What if, instead of becoming mad with grief after her son Jaehaerys' death, Helaena seeks revenge and actively participates in the war?

"She knew, too. What she herself would become.

A creature of revenge.

Revenge for the innocent little boy whose life was taken too soon. Revenge for the little girl and boy who had to witness their brother's head be separated from his shoulders. Who witnessed the blood pool at their mother's knees as she cried and wailed for her dead son."