Tsaesci is "Snake Palace", once the strongest power in Akavir (before the Tiger-Dragon came). The http://www.uesp.net/wiki/Lore:Tsaesci_(race) ate all the Men of Akavir a long time ago, but still kind of look like them. They are tall, beautiful (if frightening), covered in golden scales, and immortal. They enslave the http://www.uesp.net/wiki/Lore:Goblin of the surrounding isles, who provide labor and fresh blood. The holdings of Tsaesci are widespread. When natives of Tamriel think of the Akaviri they think of the Serpent-Folk, because one ruled the http://www.uesp.net/wiki/Lore:Second_Empire for http://www.uesp.net/wiki/Lore:Akaviri_Potentate in the http://www.uesp.net/wiki/Lore:Second_Era. He was Potentate http://www.uesp.net/wiki/Lore:Versidue-Shaie, assassinated by the http://www.uesp.net/wiki/Lore:Morag_Tong.
From http://www.uesp.net/wiki/Lore:2920,_Morning_Star_(v1)
No one in the crowd, aside from a few scattered Akaviri counselors and the Potentate himself wanted Savirien-Chorak to win, but there was a collective intake of breath at the sight of his graceful movements. His swords seemed to be a part of him, a tail coming from his arms to match the one behind him. It was a trick of counterbalance, allowing the young serpent man to roll up into a circle and spin into the center of the ring in offensive position. The Prince had to plod forward the less impressive traditional way.