So i killed the Hargraven in Deepwood Redoubt for a quest but the marker is still there as if i didn't do it. The quest didn't trigger either when i killed her.

Is there any console command that resets this quest or makes it complete so i can deliver? Thanks in advance!

a.) find quest and it's id here: http://www.uesp.net/wiki/Skyrim:Quests
b.) setstage

note- leave off the < and the >

I can't find the quest's ID but i believe it was given to me in Markarth, possibly by the Jarl? Is there a way to list all the quests from Markarth and then hand pick the ID?

if it's just a random radiant quest, it probably has a generic id....meaning that command might not work.

do you have a prior save from when you entered just before you killed the hargraven? if not, if you can still see the corpse, open the console, click on the corpse and type 'kill', close the console and see if the quest will advance.

are you sure its a misc quest? its not the house of horrors quest?

No the quest is on misc i have checked it just now. Kill the leader in deepwood redoubt.

Sadly no prior save. I'm pretty sure the dungeon is cleared and now i can't find the bodies. I wasn't sure if it was the forsworn briarheart or the hargraven, so i killed both but nothing popped up. Maybe when the dungeon repopulates i can try your "kill" command and see if it works.

I was hoping you could see the list of all the quests given to you in Markarth and from there pick the ID and set stage complete.

try setstage BQ01 100

I will try once i get back to gaming. Thank you both for your assistance!

i think that it maybe the Windhelm Jarl's quest for his ancestor's shield.