Last ancient monarch was Harren Hoare, last monarch of the restored kingdom was Yara Greyjoy.
Last known monarch was Hugor of the Hill. Previously ruled by House Lannister, before that House Baratheon, and before that House Targaryen. and just now kings are dying like flies.' ―Tyrion Lannister to King Joffrey Baratheon. ' Oh, I'm a monster? Perhaps you should speak to me more softly then.