Prelate Sidanyis

On the map

Race: Snow Elf
Sex: Male
Class: Dremora
Level: Your level
Can die?: No: essential
Added by: Dawnguard

Where they are

Darkfall PassageOn the map

Quests they're part of

Touching the Sky

Console

prid 02002B48

Picks them out where they stand. Then moveto player brings them to you.

From base GTS 118's own records: the winning copy of DLC1Prelate00 (Dawnguard.esm). Where: where the game places them as a game starts; people walk about, so they are not always there.