Re: Reincarnation
It's not so much a matter of Oronthon barring it, but more one of Tahl himself refusing it - partly due to the pagan element, partly due to the fact that no devout soul wants to be ripped from ecstasy and communion with its god, and returned to a very troubled world. Let's face it, would you? Also, Tahl doesn't entertain the idea of reincarnation, so it might just not work on him - all of that multiple truth / paradigm stuff again.
In theory Mostin could also have used a "Wish," and Eadric still had one miracle outstanding, but I felt it was inappropriate to pull that one - seemed like too selfish an act. Difficult to justify in-game.
Re: King Tiuhan
His father (Tundan, IIRC) was lost at sea when he was very young. It says a lot about Tagur that he could've seized the throne at any time - he certainly had the military muscle necessary, and it probably would've been justifiable in terms of Wyre's best interests (long-term, anyhow). Tagur is Tiuhan's paternal cousin, although I notice the King calls him "uncle" in the SH - I think Tagur's wife is also Tiuhan's maternal aunt or something. Duchess Sihu is very closely related also. They're an in-bred bunch.
I think the model of lots of powerful inter-related magnates trying to manipulate a young monarch is actually a pretty common theme - historically, and in fantasy / fairy-tale. Tiuhan comes into his majority at 14 years I guess - that's the usual age in Wyre (correct me if I'm wrong, Jim).
