In B.C. 64 Galatia was divided by Pompey among the principal tetrarchs of the country, notably two who struck coins, Deiotarus I, ruler of the Tolistobogii, and Brogitarus, ruler of the Trocmi. On the death of king Amyntas in B.C. 25 Galatia with other districts was formed into the Roman province ‘Galatia’ under the government of a legatus Augusti pro praetore. For the Koinon of Galatia imperial bronze coins had been struck at Ancyra from Nero to Trajan.