Would Wesley (The Princess Bride) survive? I think yes, but it's going to get ugly.
So I just said True Love is not the Get Out Of Castle Dracula Free card you might hope it is -
And then you send me The Guy whose whole deal is Death Cannot Stop True Love. You did that on purpose didn't you.
(Technically Jonathan Harker is also a Death Cannot Stop True Love kinda guy, but whereas Wesley simply refuses to die, Jonathan is going to refuse to stay down, if it comes to that)
Wesley knows how to appease the whims of a guy who will most likely kill him in the morning. Wesley has proven he can climb Cliffs of Despair. Wesley is a polite boy who says "please." Wesley would make it out alive then tell everyone his name is Count Dracula.
You got me. You got me. Death cannot stop True Love, and Wesley farmboy pirate man in black can survive Castle Dracula.