Archfiend-based adventures

[Mouseferatu]

Maure Castle/Mordenkainen's Fantastic Adventure - Kerzit

I always wanted an excuse to have an NPC yell "Kerzits! Foiled again!"

But then, I'm on medication.

 

[Zeit]

"To Hell and Back" (Tales of the Outer Planes) has Baalzebub.
Another adventure in there (Sea of Screams, I think) has Kali, who rules an abyssal layer, although I don't know if she qualifies.

 

[qstor]

What about a Paladin in Hell (TSR/WOTC)?

Mike