In the early 1900s, 276 Slavonic speaking Christians lived in the village.[4]Aromanians settled in the village in 1949.[4] They were a group of nomadic transhumant Aromanians (known as the Arvanitovlachs) originating from Thessaly and the Greek government assisted their settlement into depopulated villages of the Prespa region like Vrontero.[5][6] Aromanians are the only inhabitants of the village.[5]
Vrontero had 172 inhabitants in 1981.[7] In fieldwork done by anthropologist Riki Van Boeschoten in late 1993, Vrontero was populated by Aromanians.[7] The Aromanian language was used by people of all ages, both in public and private settings, and as the main language for interpersonal relationships.[7] Some elderly villagers had little knowledge of Greek.[7]
^ abWłodzimierz, Pianka (1970). Toponomastikata na Ohridsko-Prespanskiot bazen. Institut za makedonski jazik "Krste Misirkov". p. 140. "Граждено... По 1949 год. е населено со Власи. Во 1900 год. имало 276 жит. М."
^Vatsikopoulos, Helen (2020). "Memories of Abandonment and Ruination in Prespa, Greek Macedonia". Journal of Modern Greek Studies. 38 (2): 430. "1,700 Vlach nomad pastoralists were resettled in Prespa. Those from Epirus and Yiannitsa were resettled in Ayios Germanos and Kallithea; others, from Thessaly, were moved to Vrondero and Pyli"