Baron Keiza the Vampire

What we have gathered about the vampire so far in no particular order:

The vampire was not a foreign knight , clearly a polite obfuscation, but an ancestor of the Baron who went bad. He turned Far Keep into a Tower of Evil until the monarch sent a force against him. Not realizing he was a vampire, the King's force withdrew when the Evil Baron appeared to die, along with his army of wicked followers, in pitched battle. The vampire had the sense not to manifest again for many years, and skulked in his pre-prepared tomb lair until he was able to prey on the living again from his hiding place.

Baron Keiza was a powerful knight. His vampire self, if it is has not decayed, will be a force to be reckoned with. Too powerful for your current force (about CR7-you wouldn't number it, but you'd have that sense!)

Some accounts by a previous local steward warn that the vampire is cunning and kills only as many as he needs to. His power sems to wane over generations, so he appears less and less.

Glixie also recovers the standard stuff in the srd about vampire powers and weaknesses. So we know the basic stuff shown in the SRD about vampires.

There is an artefact for killing vampires, a holy crossbow , in the Cathedral at Guildtown, the city which lies nearest to Farkeep only 2 day's ride away. A single well-placed shot to the heart would destroy the fiend. The group was able to retrieve this holy hand crossbow.