Based on the context of The Name of the Wind and The Wise Man's Fear, not much is known about the Chandrian, other than the fact that they're responsible for Kvothe's parent's deaths and are a ...

In The Name of the Wind and The Wise Man’s Fear ... Cinder is one of the Chandrian, an ancient evil that becomes Kvothe’s sworn enemy when they kill his parents. Lord Haliax leads the Chandrian.