The next throne I went after was guarded by an Earth king and a bunch of trolls and earth elementals. Flaming crossbows bolts, fire evos, and fire elementals made it a fairly easy throne to clear.
This province also had sites for gnomes and adepts of the iron order which gave me earth and glamour access.
This was the throne of the artificer. I remember a post in the thread trying to encourage everyone else to team up against me, but I guess nothing came of it and no one attacked me.