Birbin (and all interested) - since you've clearly invested in researching this tribunal, I was wondering if I could solicit your advice. I'm slowly writing up a "which tribunal to choose" FAQ entry, and I've written up the Transylvanian Tribunal as below. This is based on a cursory read on Wikipedia, however, and l'm sure it can be written-up better - can you comment on what the basic state of the tribunal is like, and what themes it lends itself to? (This is the theme of the FAQ page). And, in particular, which features would support the themes that its location, folklore, and circumstances set it up to tell best?
FAQ entry follows...
The Transylvanian tribunal has never been described in detail, under any edition of Ars Magica. Hermetically, it is the seat of power of House Tremere, and a few details on it are provided in Houses of Hermes True Lineages. Some notes can be made in light of this Hermetic background and the historical realities.
The tribunal is nearly identical, geographically, with the kingdom of Hungary. Thirteen-century Hungary is a powerful Christian nation. Its income exceeds that of France, and in 1212 its king raised the largest crusading army yet in the Fifth Crusade. His authority is limited, however, and in 1222 will sign the Golden Bull - a constitution that will grant much power to lesser nobles. Hungary has seen an influx of refugees fleeing the Mongol horde, and in 1241 will itself be conquered and utterly decimated, with perhaps as many as 80% of its settlements destroyed and 50% of its people killed. This disaster will lead to intensified fortification and military improvements that will suffice to finally arrest the Mongols in 1286.
In terms of mythology, the Hungarians descend from the pagan Magyar tribe and have only adopted Christianity in the last two centuries. As a result, pagan holdouts (especially hedge wizards) may remain. Hungarian shamans (taltos) were associated with magical horses, prophecies, and healing. They practiced their magic silently, and probably had second sight. Hungarian and Romanian folklore includes vampires, and witches that can send their spirits from afar and fly at night, as well as numerous legends about local spirits (mermaids, elves, and so on), with local names and appearances.
This background lends itself to two general themes: covert support of petty nobles that may, post-Mongol, evolve into overt support of the kingdom; and an investigation of the dark uniquely-Transylvanian mythology involving vampires, witches, and so on - and, perhaps, of the pagan shamans.