Use the console to move her to you.
For Hroki, it would be: player.placeatme 000198EE
The "placeatme" command is used with the base or object ID and not reference ID. It also does not move an actor to you but rather creates spawns a new copy of the original - which will not have the inventory or relationship status/rank of the one you lost. It also can result in clones running around if the original is not truly gone. The moveto command that the OP ended up using is the cleaner solution.
Also, to move an NPC to you as opposed to moving you to wherever they might be you can use it as follows:
prid *insert reference ID here*
enable
moveto player
The "enable" command is inserted just in case they've been disabled. It's not usually needed though.