(*) "Ulterior" regions.
A rebellion in this province featured a long siege of the Mons Medullius and was led by the chieftains Gauson and Corocotta. The first Christian to be executed for heresy met that fate for developing the doctrine of Priscillianism in this province. Galba and Otho served as governors in this province, which was long split into "Citerior" and (*) "Ulterior" regions. At one battle in this province, the winning commander placed his legions on the wings of his concave formation, a tactic referred to as the "reverse Cannae". The siege of Saguntum, a city in this province, sparked the Second Punic War, which also included the aforementioned battle of Ilipa. For 10 points, identify this birthplace of Hadrian and Trajan, a Roman province comprised of most of the Iberian peninsula.
A rebellion in this province featured a long siege of the Mons Medullius and was led by the chieftains Gauson and Corocotta.
Hispania [prompt on Spain; prompt on Iberia until it is mentioned]