In many stories, crosses or other religious symbols hurt vampires.
- In the Shadowhunters books by Cassandra Clare, vampires are weak to whatever religious symbols they believe in.
- In Buffy the Vampire Slayer, vampires are specifically vulnerable to crosses.
- In Dungeons & Dragons, vampires, or indeed any undead, can be driven off or turned to dust by a (non-evil) cleric presenting their religious symbol.
- In the Dresden Files, vampires can be repelled by any symbol backed up by genuine faith.
And of course, the big one:
- In Dracula, one of the earliest vampire stories, crosses (generally a crucifix) are anathema to the undead.
What is the first story that featured a religious symbol (most likely a crucifix) being proof against vampires or vampiric (i.e. bloodsucking) entities? Was it Dracula, or something earlier?