Marius Caro is an imperial noble and count of Leyawiin. His wife Alessia Caro is the daughter of Arriana Valga the countess of Chorrol.
Marius and his wife Alessia both have strong support for trans-Nibenean traditions and thus despise all argonian, khajiit, and dunmer. A political point of view that pleases and disgusts the staff at the castle and the locals of Leyawiin depending on race.
You can become a part of his Knights of the White Stallion.