Aegir

Aegir is the god of the storms and seas. His domains are nature and tempest.

Aegir was originally worshiped almost exclusively by giants, in particular by storm and cloud giants. As a member of the giants' pantheon, Aegir answered to Annam, the Allfather. At the close of the Second Age, Tiamat (at the urging of Memnor) convinced the other deities turned against Annam's wife, who was a primordial. Feeling caught between their leader and their fellow deities, Aegir - along with Stronmaus, Thrym, and Surtr - chose to stand aside. When Annam's wife was killed, and Annam himself banished, the giants felt betrayed by their inaction and turned against their gods. While his fellow giant deities gave way to anger or despair, Aegir simply decided to seek new followers elsewhere. Within a hundred years, he was accepted as a more general storm god, his association with the giants all but forgotten.

When Procan was killed during the Deity War, Aegir subsumed his portfolio as god of the oceans--as well as most of his followers.