The Warden has to actually choose the option to deliver the letters as opposed to just telling them their husbands are dead, otherwise the quest may not mark itself as complete. If you have any companions with you and you say: " Would someone like to handle this for me?" They will deliver amusing one-liners.
There are four wives in total, the locations of which are as follows:
Redcliffe chantry - Irenia, she is located in the chantry in Redcliffe, it should also be noted you can still give her the notice if you do not save Redcliffe from the night attack. You just have to come back at a later time and she will be in the chantry
Note: This quest cannot be completed after the Landsmeet as you will not be able to get to Irenia in Redcliffe.
Bug!pc Occasionally, even when choosing to deliver the letters, the quest still will not update. Nor will the letters disappear from the Warden's inventory, although the quest can still be completed.
Bug! In pcxbox360 and ps3 if you enter the Dirty Back Alley location and confront Gaxkang for the Unbound questchain, the location will disappear from your map and you will be unable to complete the quests Blood of Warning and Notices of Death. So make sure to mark the door and give the Blackstone Irregulars' letter to Tania before you enter the Quaint Hovel to see Gaxkang.)
Bug!pcps3Although there are only four widows, you may find five letters of condolence in your inventory after accepting the quest. The fifth letter remains in your inventory after you complete the quest.
Bug!pcIf you do not talk the the innkeeper during The Urn of Sacred Ashes quest (which triggers the outside fight with the cultists), Larana may not re-appear, meaning the quest cannot be completed.