 Finds of 10th-century Byzantine coins, earrings, reliquary crosses and similar artefacts abound in the region of Szeged.Both facts imply that Gylas' domains were located near the confluence of the Tisza and Maros, but this interpretation is not universally accepted by modern historians.One "Ioannes [John], metropolitan of "Tourkia"" attended the synod convoked by the Ecumenical Patriarch to Constantinople in 1028.