Menachrahan
Menachrahan was the sea god of the Krolvin in the I.C.E. Age history. The Lord Warfarer of a ship would pay honor to the sea god by sacrificing ten to twenty percent of the plunder from every raid, dumped ceremoniously over the side of the ship into the deep waters. It was considered necessary if the Warfarer did not wish to lose his ship, as it was assumed the gods will take what is theirs whether it was freely offered or not. There was a special sacrifice for christening war ships, requiring the Warfarer to impale a captive with iron spikes to the hull and thus drowning them as the ship was launched into the water.
Krolvin religion was very simple. It was always conducted by the Warfarer on their ship, with dual sacrifices to the war and sea gods.