House Vol was an elven dragonmarked house and one of the first of the dragonmarked houses to appear, originating in Aerenal. The house existed for 600 years (-3200 YK - -2600 YK) before it was laid to ruin and completely wiped from the face of Eberron.
House Vol possessed the Mark of Death. Though scholars have debated as to the actual power wielded by a member of House Vol, it was no doubt terrible in scope and power. House Vol was wiped out by a union of dragons and elves who saw the house as an abomination. However, not every member was destroyed. In the final days of House Vol young Erandis Vol was transformed into a lich by her mother in order to protect her. Lady Vol now oversees the Blood of Vol, manipulating lesser people in an effort to restore the lost Mark of Death.
It should be noted that since the House was destroyed before the introduction of the d' prefix, no one who bore this mark would be called d'Vol.