Drowned God

The Drowned God is the chief deity worshiped in the Iron Islands. His greatest enemy is the Storm God. His worshippers are almost exclusively from the Iron Islands.

The Drowned God's followers believe that the Drowned God died and was reborn anew from the waves, thereby making him immortal, as what is dead can never die. These followers believe that a man can attain salvation by being drowned in salt water and later resuscitated, going through the same process of rebirth as their god. They are therefore called Drowned Men and wear robes of roughspun seaweed, stained with salt. They believe that when righteous men die, they are summoned to the Drowned God's watery halls, where they will feast forever beneath the waves.

Tirvia

Possibly a reference to the Great Old One Cthulhu. The religious phrase "What is dead may never die, but rises again harder and stronger" bears a resemblance to the phrase "That is not dead which can eternal lie. And with strange aeons even death may die" from the Necronomicon.