Question

An epitaph dated to this dynasty’s control of Namāra honors the “king of the Arabs,” a Naṣrid phylarch (“FY-lark”) who defected [emphasize] to this dynasty before it lost Amida. (-5[1])This dynasty sent gifts to Mirian III after an eclipse and dispatched the ambassador Theophilos the Indian. A Heraclian ruler who took a regnal name from this earlier dynasty lost the Battle of the Masts to Mu‘āwiya I (-5[1])(“moo-AH-wee-yuh the first”). Magnentius killed a possibly gay member of this dynasty (-5[1])who escaped a massacre of its princes, like Gallus and a later ruler who died at Samarra after a failed assault on (-5[1])Ctesiphon (10[1])(“k’TESS-ih-fon”). This dynasty’s Illyrian (-5[1])(“ill-LEER-ian”) founder, who defeated (-5[1])Carausius (“kuh-RAO-zee-us”) and was called “green” or “Chlorus,” (10[1])served as (-5[1])augustus (10[3])with Galerius. (10[2])In 363, Jovian briefly succeeded this dynasty’s last ruler, Julian. (-5[1])For 10 points, what dynasty’s eponymous emperor defeated the (-5[1])rival tetrarchs Maxentius (10[1])and Licinius (10[5]0[1])■END■ (10[7]0[6])

ANSWER: Constantinian dynasty [or Constantinians; or descriptions of the family of Constantine the Great, Constantine I, Flavius Valerius Constantinus, Konstantinos I, Constantius Chlorus, Constantius I, or Flavius Valerius Constantius; accept Neo-Flavian dynasty; reject “Flavian dynasty”] (Clues include the Lakhmid Imru’ al-Qays, Constans II, Constans, and Constantius II, from accounts by Ammianus Marcellinus, Philostorgius, and Zosimus.)
<Other History>
= Average correct buzz position