Spain is in SouthWestern Europe, South of France, East of Portugal, and North of the Mediterranean Sea... Southern Spain is South of Northern Spain.
Texas is the southern United States, not in northern Argentina or southern Spain.
In the southern USA.
Oregon is closer to northern Spain than to southern Spain, because it is at a higher latitude and because southern Spain is farther from the Atlantic than is northern Spain (Portugal occupies the Atlantic coast on the southern Iberian peninsula).
Sevilla is the largest city in southern Spain.
The Autonomous Community is southern Spain is called Andalucia.
In Argentina, you closer to northern than to Spain in southern.
All of Andalucia is the southern most Autonomous Region in continental Spain.
Galicia is in northwestern Spain.
Southern Spain is on the Mediterranean.
See the related link. The dark green area is Spain.
southern
None. Gibraltar is a British territory, across the border from southern Spain.