Marrogast

Marrogast the Triune is an Undead Wizard who dwells in a cavernous lair on Mount Dreleck in the Shadowfell. They were once a trio of wizards who feared death terribly and who combined their more forbidden arts to bind themselves together as an undead monstrosity. They appear to have been two women and one man, all Human.

Marrogast rules over a large swath of the Shadowfell where they dwell. When the Dragons Skyalokanara and Umbrazhalanoth came, bringing with them Shadowed Mahakazor, the skull lord made bargains with the dragons, allowing them to remain in its domain in exchange for certain protections. With the dragons dead, however, they saw no issue with claiming the rich hoard for themselves, including the coveted Cup and Talisman of Al'Akbar. This put them in conflict with the dragon slayers, the Fire Wasps, who proved more than a match for the skull lord. Marrogast chose to flee rather than face death.