I just got the wiki installed yesterday, and am working on adding in various characters, stories, places, and the like for people to reference. The wiki is at http://www.faedhretreat.com/wiki I will be continuously adding to it as I go along, trying to catch up. However, since there is a mention of all of Arandel's children in his entry, you should have most of what you need to figure out the relationships needed in Assassin's Gambit.