Shynaria, the albino, pacifist bard, survived drinking a Guthix Balance potion when she was turned into a vampyre. She served with the Myreque until it's dissolution by Veliaf after Drakan's assassination.
Lothorian Foryx and his minion Arch Foryx were slain in the trap orchestrated by Lieutenant Isaac several years prior to Drakan's assassination.
Maira, a member of Isaac's old cell, left Morytania without notice and became a slayer.
After Vanesuclea Drakan seized power in Darkmeyer, vampyric covens were abolished via assassinations of many heads of families. Any resistance was stamped out with brutal displays of force. Their resources were assimilated into House Drakan's treasury.
Only vampyres can hold power and land in Morytania. Sliske's ownership of the Barrows is a very peculiar exception.
Vampyres are evil by nature, and cannot act altruistically. They always have their own best interests at heart, for better or for worse for those they deal with.
Zaros' name is barely known by this point. Most mentions of him are in hushed whispers, and his few followers worship from the shadows.
By extension, ancient magics are almost unknown. Only the most well-traveled and powerful mages would even know of them, and likely only those with Zarosian connections would know them. Even fewer would have the talent to cast them.
Those who do know the ancient elements take some modicum of secrecy when using their elements, as it is a huge red flag that they're zarosians. Zarosians were previously hunted to near extinction for merely following the Empty Lord, so most are not keen on revealing themselves.