Galatia () was the name of a province of the Roman Empire in Anatolia (modern central Turkey). It was established by the first emperor, Augustus (sole rule 30 BC – 14 AD), in 25 BC, covering most of formerly independent Celtic Galatia, with its capital at Ancyra. Under the Tetrarchy reforms of Diocletian, its northern and southern parts were split to form the southern part of the province of Paphlagonia and the province of Lycaonia, respectively. In c. 398 AD, during the reign of Arcadius, it was divided into the provinces of Galatia Prima and Galatia Secunda or Salutaris. Galatia Prima covered the northeastern part of the old province, retaining Ancyra as its capital and was headed by a consularis. Salutaris comprised the southwestern half of the old province and was headed by a praeses, with its seat at Pessinus. Both provinces were part of the Diocese of Pontus. The provinces were briefly reunited in 536–548 under Justinian I. Although the area was eventually incorporated in the new thema of Anatolikon in the latter half of the 7th century, traces of the old provincial administration survived until the early 8th century. Governors (List based on Bernard Rémy, Les carrières sénatoriales dans les provinces romaines d'Anatolie au Haut-Empire (31 av. J.-C. - 284 ap. J.-C.) (Istanbul: Institut Français d'Études Anatoliennes-Georges Dumézil, 1989).) First organization of the province of Galatia Marcus Lollius 25 - 22 BC Lucius Calpurnius Piso Pontifex 14 - 13 BC Cornutus Aquila 6 BC Publius Sulpicius Quirinius 5 - 3 BC Marcus Servilius Nonianus AD 3 Marcus Plautius Silvanus 6 - 7 Sextus Sotidius Strabo Libuscidianus 13 - 16 Priscus c. 16 - 20 or 21 Metilius c. 20 - 25 or 21 - 26 Fronto c. 25 - 29 or 26 - 30 Silvanus c. 29 - 33 or 30 - 34 Titus Helvius Basila c. 33 to c. 37 Marcus Annius Afrinus 49 – 54 Quintus Petronius Umbrinus 54 - 55 Lucius Nonius Calpurnius Torquatus Asprenas 68 - 70 (Between AD 70 and AD 111 Galatia was combined with Cappadocia. The governors for those years can be found at List of Roman governors of Cappadocia.) Second organization of the province of Galatia Lucius Caesennius Sospes 111 - 114 Gaius Julius Quadratus Bassus c. 114 Lucius Catilius Severus 114 - 117? Lucius Cossonius Gallus 117 - 119 Aulus Larcius Macedo 119 - 122 Gaius Trebius Sergianus c.