Thanks for trying out Keep on the Borderlands! There are very, very few clerics in The Realm that can cast raise dead. So few that I can't suggest one off the top of my head, in fact. I'm not 100% sure that there is one that's easy to reach. Part of that stems from that fact that the Realm was primarily designed for folks in my D&D pen & paper campaign, back in the day. In the games I run, raise dead is a 9th-level spell, and there is no resurrection. Of course, I didn't have access to changing the level of spells when I first created the Realm hack, so it's "technically" still a 5th-level spell for player characters, just like in all other FRUA games.
Anyway, that's the long-winded explanation of WHY it's so hard to find folks to raise your characters from the dead. You're effectively looking for 18th-level priests.
In pen and paper, it's led to some great fun. The campaign I was starting when The Realm was gearing up in the late 90s is just about to end after close to 15 years. Only two members of the original party are still around, but there are three priests now who are high enough level to cast raise dead!