The Sunken King was the leader of a race that worshiped Sinh, the Slumbering Dragon. He ordered his people to build a great shrine to protect and preserve Sinh's slumber. However, he was killed by Sir Yorgh when he and his Drakeblood Knights invaded Shulva in search of dragon's blood.
It is unknown if the Sunken King ordered his people to build Shulva by his own will or by the will of Queen Elana.
- Cut content from the Scholar of the First sin update revealed the Sunken King's name to be Gryth.