Panaga is a former pupil of one of the last demon dealing Tytalus that survived the wizard's march in the 11th century. His master, Tancred di Catania, hid from the forces of the Order on Malta. Here he took his apprentice and guided him in the developments of the Arts as well as in the way to deal with demons...
Tancred died a bit more than that, however, since he actually summoned a demon, with the help of an number of diabolists. He bound the demon-heart and cut the demon's eyes, horn and tongue from his head, hiding them away in turn. The demon was then made to serve first him and later Panaga, by lending them his magic might.
The diabolists that aided them became sort of a coven. The group disbanded shortly thereafter, with Tancred entering the final twilight. One of them, a Castilian knight named Alfonso de Gormaz, had a deal with a demon granting him a lifespan of 150 years in exchange for his soul (the devil was patiently waiting for his price). He went back an joined the Knights of Santiago, bringing many of them into the reach of hell by corrupting them. He is now one of the leading members of the knights with a diabolist circle at his side.
Panaga devised of a plan to revenge his master (something he swore to do at the the deathbed of Tancred). He wanted to create turmoil in the order and fire the quarrels until war would break out and he then, in one decisive stroke, could destroy them. He carefully planted powerhouses in various parts and started his "work" in Iberia, where he (correctly) viewed open conflict to be imminent. He planted seeds of dissent, posing as someone else, killing grogs or stealing vis etc. (This is how he could be "encountered") His choleric temper and arroagance hindered his endeavors sometimes and he would simply torch or curse a village for "improper behaviour", but then again, this increased pressure on the magi... He may use the opportunity of a tribunal to further his plans. He will take on the guise of a companion he kills and spread trouble... He will start a fight by insulting someone from the "Roman" covenants. After the ensuing brawl calms down, no one can remember who started it (magic...but that should not be obvious). Then, at night, he will mind control someone to kill a companion or grog. This someone might be a PC, so the magi will be inclined to believe in his innocence. (Do not let him know what transpired, roll secertely for his resistance, then allow other people to find his bloody dagger). Panaga has no special goal apart from cerating more pressure on the strained relations. The death is a political issue rather than a question of the worth of the victim's life...
Powers: As I said, leave them open. He is very good at changing his appearance and has considerable power over minds. He can curse quite well and has some fire spells. Most of this is fueled by demonic power.
He will be making trouble basically anywhere. He is a very powerful mage and has been known to abduct people (the occasional child or maiden) and steal valuable materials (like gold) out of churches. He is extremely arrogant and will use magic casually to punish disrespect. Should leave quite a track...He is clever enough not to cross the order (yet) and has access to fast-vanishing-spells, that take him away quickly. Also he has some hidden agenda that is yet unknwon, but his actions may seem to make some sort of sense. he is known to confer with demons, though he is no servant of the infernal yet. Panaga is an NPC from the Harnworld, so some players may know him if they know Harnmaster - but I have changed the story, so this is no problem. He should never be encountered directly, only leave a track of frightend and bewitched or cursed villagers. His appearance keeps changing, but he mostly takes the form of a tall, gey haired and bearded man in a long white-grey robe with a furious look in his eyes and short temper...