Talk:King's Ultra Greatsword/@comment-174.124.26.196-20141011155210/@comment-71.30.134.7-20141116093437

You can only get Vendrick's soul once per playthrough, meaning you'll have to advance to the next journey in order to get another one. Respawning Vendrick via a bonfire ascetic will not yield another copy of his soul within the Shrine of Amana, but only the amount of souls he will give you upon defeat.

From Vendrick's wiki page:

"Vendrick will not drop anything except the given amount of souls when he dies. However, his Soul of the King and his armor can be found in the Shrine of Amana, behind a door that can only be opened upon defeating him. The door is in the area between the first and second hut where the player can find a pathway leading to the door, however, they must be human form to open said door."

Using a Bonfire Ascetic instead of going to NG+ will not spawn these items anew in the Shrine of Amana."

The pathway described is the one where you can see an obelisk off in the distance.