Ramsay, William Mitchell: The cities and bishoprics of Phrygia: being an essay of the local history of Phrygia from the earliest time to the Turkish conquest (Band 1,1): The Lycos Valley and South-Western Phrygia (Oxford, 1895)

U4 m- HIERAPOLIS : THE HOLY CITY.

whether seniority or otherwise, whereby the Elders passed on from
class to class. The members of the Gerousia, then, were not arranged
according to tribes, as we saw that the members of the Laodicean
senate were during the first century at least; but some other system
of classification prevailed.