Who are Isger's neighbors?
Cheliax, Molthune, Druma, Andoran, Five Kings Mtns.
The Goblinoid Wars forced what 3 groups to cooperate, something that under any other circumstances would have been seen as impossible?
The Eagle Knights of Andoran, the Hellknights, and the Mercenary League of Druma.
Which monastery has made a name for itself taking the many orphans of the Goblinoid Wars and raising them in the worship of Asmodeus, with male children often aspiring to become Hellknights or priests of Asmodeus, and female children often aspiring to join the unholy order as sisters?
The Sisterhood of the Golden Erinyes.
Who is currently the ruler of Isger?
Steward Hedvend VI officially. However, publically, at least, he is serving more as House Thrune's pawn than anything else.