Joshua Randall
Legend
Sinister Secret of Saltmarsh:vampire magic-user lizardman!
Right, theAre you sure you're not thinking of I2: Tomb of the Lizard King?
vampire magic-user lizardman
the titular antagonist
[sblock]His proper name is Sakatha, and he's one of my favorite D&D villains -- and a sadly underrated one, too. Sakatha's story is that he was mortally wounded during a battle with the good guy human baron (The Battle of Waycombe*).
* Why the heck do I remember that?!
Sakatha used a wish from his ring of three wishes to survive, but his wish was rather badly worded. It was along the lines of "I wish to survive to drink the blood of my enemies." Well, the wish-gods interpreted this literally, so Sakatha survived... as a vampire.
I believe it was after his vampirization that Sakatha used a wish to grant himself magic-user status.
The downside to Sakatha as a villain is that he is both insane and not very bright. I think if I were to run Tomb of the Lizard King today, I'd make Sakatha a lot smarter.[/sblock]
Another good source of vampire enemies, although it does not predate Ravenloft, is the 2e mega-adventure Return to the Tomb of Horrors. There are
three vampires present in the Bleak Academy who have been wreaking havok around that area, and will be sent out after any PCs who meddle in the Academy's affairs