 Constantine Porphyrogenitus identified Etelköz with the lands where the rivers " Barouch " , " Koubou " , " Troullos " , " Broutos " , and " Seretos " run . The identification of the last three rivers with the Dniester , the Prut , and the Siret is without debate , but the traditional identification of the Barouch with the Dnieper and the Koubou with the Southern Bug is refuted by Spinei . Al @-@ Jayhani wrote that the Magyars ' territory was located between two rivers named " tl " and " dwb " in the 870s . According to modern scholars , tl may refer to the Volga , the Don , or the Dnieper ; dwb is identified as the Danube . According to the Gesta Hungarorum , the Magyars lived in " Scythia " or " Dentumoger " ; the latter name , which refers to the Don River , suggests the Magyars inhabited the eastern regions of the Pontic steppes , according to Spinei . 
