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.
Aegean Macedonia
The term is currently used by some scholars, mostly contextualised, along with the sister terms Vardar Macedonia (describing the part of Macedonia region in which the Republic of Macedonia inhabits) and Pirin Macedonia (describing the part of Macedonia region in which the Blagoevgrad province of Bulgaria inhabits). The area of the Macedonian region that is part of Albania and Kosovo is often excluded. The term is used more frequently by ethnic Macedonians and has irredentist connotations.