The Frozen City
Known for its long line of mages, House Sadar is sometimes called the House of Shadows. Led by Lord Renn Sadar, the family has long been shadow-tainted gifted with a predilection for shadow-related magic, but in turn unnaturally obsessed with darkness. A strong if a bit mysterious house, they are enemies of House Nagel.
It’s rumored the house is in possession of an extremely powerful artifact know as the Staff of Shadows, but then anything with the a hint of shadows or darkness ends up associated with House Sadar.