The correct answer is indeed option 2, indicating that the historical Macedonian territory has been a contention between Bulgaria and Greece. These two countries, located in the Balkans, have had long-term disputes over the territory of Macedonia, primarily due to the rich history and cultural significance of the region, which was once the heart of Alexander the Great`s empire.

Option 1 is incorrect as Portugal and Spain, both located in the Iberian Peninsula, have no significant historical or cultural ties with Macedonia.

Option 3, suggesting a contention between Romania and Bulgaria, is not correct. While Bulgaria has indeed had territorial disputes with its neighbors, there is no prominent historical contention over Macedonia with Romania.

Lastly, option 4, implying a contention between Portugal and Greece, is incorrect as Portugal, being a western European country, has no historical or territorial claims over Macedonia, a region far removed from it.