Triton

While Tritons used to be widespread in seaside places and islands, a period of time in history where they were nearly hunted to extinction caused them to reach out to their patron Talos, and seek sanctuary elsewhere. He saved them by creating a whirlpool through which they fled through the Astral Sea and found their safety on the edge of the Feywild, founding a small settlement within the shoreline, Cois-trá.
Patron Deity: Talos 
https://www.dndbeyond.com/races/triton