All the Kings and Queens of Westeros That Came Before and After Aegon II

Legally the third and youngest child of Robert and Cersei, Tommen is actually the youngest product of Cersei and Jaime's affair. Tommen ascends to the throne when he is barely more than a child after his brother Joffrey is murdered at the Purple Wedding. He tries his best to be a good king, but is always overruled by the nobles and his mother, who hold the real power. After his wife Margaery and her family are accused and imprisoned, Tommen tries to assert his power, to no avail.

During a show "trial," Cersei implements her plan and uses wildfire to blow up the Sept and everyone in it. Distraught, Tommen ends his own life, jumping out of a high window.