Pirin Macedonia (region)
It covers an area of about 6,798 km2 which is 10.18% of the geographical region Macedonia. One of the regional centers is Blagoevgrad, also known as Gorna Dzumaya, the old name of the city. The region is bordering with Kyustendil Province and Sofia Province on the north, Pazardzhik Province and Smolyan Province on the east, Greece on the south and Republic of Macedonia on the west. The population is estimated around 325.000 people.
Macedonia (region)
The Treaty of Bucharest (August 1913) took off most of the Bulgarian conquests of the previous years. Large part of Macedonia became Southern Serbia, including the territory of what today is the Republic of Macedonia and Aegean Macedonia became Northern Greece. Greece almost doubled its territory and population size and its northern frontiers remain today, more or less the same since the Balkan Wars. However, when Serbia acquired 'Vardarska Banovina' (the present-day Republic of Macedonia), it launched having expansionist views aiming to descend to the Aegean, with Thessalonica as the highest ambition. However, Greece after the population exchange with Bulgaria, soon after its victory in the Balkan wars, managed to give national homogeneity in the Aegean and any remaining Slavic-speakers were absorbed.