Lord Berwyn Ithell was the leader of the Ithell Clan during the God Wars. He had Prifddinas fortified with a granite wall to protect it from the warring races.
| Preceded by | Title | Succeeded by |
| Unknown | Leader of the Ithell Clan | Eventually Lady Ithell |
| Clans | |
| Leaders |
 Lord Amlodd Lord Cadarn Lord Crwys Lord Cywir Lady Hefin Lord Iorwerth Lady Ithell Lady Meilyr Lady Trahaearn |
| Former leaders |
 Lord Iorwerth King Baxtorian Cadarn |
