Lord Ernyst Lynkyn, Duke of Black Water, was a Corisandian nobleman and the commanding officer of the Corisandian Navy.

Holding the rank of Admiral, he commanded the combined fleet of Corisandian and Emeraldian galleys that went to war against the Royal Charisian Navy. He was killed in the Battle of Darcos Sound in the Year of God 892, cut down by Merlin Athrawes during the boarding of HMS Royal Charis. (OAR, BSRA)

His son Adulfo succeeded him as Duke of Black Water. (AMF)