Esroniet is a spice island that lies somewhere between Tamriel and Akavir. It is the source of much of Tamriel's nutmeg, cloves, mace, and hot peppers. The flame-eyed Hot Pepper Bantam Guar is native to the island.
The main port of the island is called Black Harbor. The port was captured in 3E 282 by Uriel Septim V, and in 3E 284 the island's ruler, Prince Bashomon, surrendered the whole kingdom to him. Uriel transformed it into a major base for the Imperial Navy and used it as a launching point for the invasion of Akavir in 3E 288.