FEMALE CITY ELF ORIGIN

In this case Vaughan will interrupt the ceremony and take you along with the rest of the elven women to his estate. Wait for the game to transport you to Arl of Denerim's Estates Interior (City Elf Origin M3, 1). Talk to Shianni here and wait for arl's guards to show up. They'll kill one of the women (you couldn't prevent that from happening).

Listen to a short conversation between the main character and two guards. Thankfully you won't have to fight them alone, because Soris will show up. Wait for him to deliver a sword borrowed from Duncan, STOP the fight and equip this item in your inventory. You can now attack both guards and it shouldn't take too long for you to kill them.

Adwen

You may begin exploring the estate in the search for other women.

A cook will stop you in the next room (City Elf Origin M3, 2), but thankfully his elven assistant Adwen will neutralize this problem.

There are some guards in the next room (City Elf Origin M3, 4) and if you're playing as a rogue you'll have a chance to get rid of them without engaging them in combat. Go to the pantry and collect rat poison from one of the closets (City Elf Origin M3, 3). After that return to the kitchen and break into a new cabinet (City Elf Origin M3, 2) to collect brandy. Return to the guards (City Elf Origin M3, 4) and offer them poisoned brandy by choosing a correct response from the list.

If you're playing as a warrior you won't be allowed to steal the brandy and therefore using poison won't be possible. As a result you can proceed to the dining room (City Elf Origin M3, 4) without any additional delays. There are three guards here and they'll stop you as soon as you've entered the room. I would recommend killing the first one by choosing the correct answer during the conversation. Once this is done deal with the remaining two guards.

Be careful, because a new guard will attack you while trying to leave this room. I would recommend to explore one of the larger eastern rooms along the way (City Elf Origin M3, 5), because it's going to be an armory. Defeat a new guard and take your time to collect new equipment. Continue heading north until you come across a guard captain (City Elf Origin M3, 6). Your fiance Nelaros is going to be murdered here (you can't stop it from happening). You can avenge his death right away. Attack standard knights first and then deal with the captain.

Keep moving north and then choose the corridor leading to the western areas of the estate. There are a lot of rooms along the way. Exploring them is not mandatory, however I would recommend looking around. You can find a lot of items in plain sight or in crates, however most of the rooms will be guarded by 2-3 humans. Don't forget to use your lockpicking skills if you're playing as a rogue. One of the more powerful bodyguards will attack you near the last room (City Elf Origin M3, 7). Make sure to check his body after the battle, because he was carrying a good shield. You should also look around to find medical supplies. The last part of this quest is identical for both genders, so you should check the Finale section.