1. Strabo, XII.5.1, 567
‘The three tribes used the same language and differed from one another in no other respect; they were divided each into four section called tetrarchies, each having its own tetrarch, one judge, and one military commander, subordinate to the tetrarch, and two junior commanders. The council of the twelve tetrarchs consisted of three hundred men, and they assembled at the so-called Drynemetos. The council decided murder cases, the tetrarchs and the judges all others.’