There's a Crusade for Greece on at the moment, and I'd like to hire some Holy Orders. I have plenty of Piety, but for some reason the "Hire" buttons of all the Holy Orders are greyed out.
For what it's worth, the Teutonic Order are "Under contract with the Knights Hospitaller in Eilat", so I can see that'd make them unavailable. But what about the Knights Templar?
What's going on?
Hmmm, fast forward a few months and the Templars and Hospitaller are now both available for hire (though the Templars have been badly mangled, so I guess I'll let them recover before hiring them).