Cunningham believes the Sobii and Kathaei to have been his subjects, whom he asserts were Turanians, making them of the same stock as the Saka or Indo-Scythians.
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Cunningham identifies him with the Indian King Fobnath of "Sangala," (a name some read as "Saka-town") while A.C.L. Carlleyle connects him with the same king's son Suveg, which is more likely in light of the identification of Fobnath as a royal title rather than a name; potentially making him a Madra of Saka/Iranian origin.
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John D. Grainger however, identifies him as a Greek dynast; Frank L. Holt speculating that he was a mercenary captain who minted coins simply to meet the needs of his troops.