The only question was which form of Christianity were the Magyars to adopt, the Eastern or the Western?
Unfortunately the court of Vienna was not content with winning back the Magyars to the Church.
The terror of their name had long preceded them, and Bela, in 1235 or 1236, sent the Dominican monk Julian, by way of Constantinople, to Russia, to collect information about them from the "ancient Magyars" settled there, possibly the Volgan Bulgarians.
Encouraged by promises of help from Louis XIV., the Magyars now rose pro libertate et justitia, and chose the youthful ThOkoly as their leader.
The archives of the cathedral were plundered by Magyars and Moslems, but several inscriptions, Greek, Slav and Ruman, are left.