Ferdinand Genitivi

Brother Genitivi is a religious brother and an expert on the Urn of Scared Ashes who resides in the south east of the Marketplace District in Denerim.

Involvement
Brother Genitivi is key to one of the quests to locate the Urn of Andrastes Ashes in Haven. He is found in a hidden room within the main hall of Haven and tells you that he knows where to find the Urn.

After following the storyline and entering the Ruined Temple, he will break away to study the carvings. If you return and talk to him a little later, you can ask him to return to Denerim or to remain there, either way the results have no effect on this or later quests.

If you see Genitivi later in the game at his house in Denerim (or if you didn't speak to him again or told him to stay in the temple while you explored), he will ask you if you think it is wise to let pillgrims go to visit the Urn. You can say whatever you wish however if you decline you will have to kill him to continue.

Strategy
This is only applicable if you say that it is a bad idea to allow pillgrims to visit the Urn.

Fairly easy, there is only him so just normal tactics and overpower him until he dies.