The Dark Eight
The Dark Eight are the generals of the Blood War; these eight pit fiends hold council every sixty-six days. The Dark Eight hold immense power, but they still answer to the Lords of the Nine, who each control a layer of the Nine Hells, and ultimately they answer to Asmodeus. The pit fiends that make up the Dark Eight are called Baalzephon, Corin, Dagos, Furcas, Pearza, Zapan, Zaebos, and Zimmimar. These eight rule the devils beneath them, meeting in the fortress of Malsheem in Nessus, the ninth layer. In addition to planning the next Blood War offensive, they also have a hand in determining which devils get promoted. On the rare occasions when they are not leading their armies, they reside in Nessus. When away on some hellish errand, they often appear in malefic human guise.