I will try to gather here all the available information I can find online about the Fragkopoulos (Phrangopoulos/Φραγκόπουλος) family (different forms of the name exist, like Fragopoulos, Fragopulos, Frangopoulos because of the translation in English). Οne day Ι might find the time to organize the information and create an online database. 🙂
General information about the family: Fanariote family, established in Naxos and Zakynthos, with a title of nobility since the 15th c. Members of the branch established in Naxos (1628-1925) renounced the Greek Orthodox faith and converted to Roman Catholicism. They possessed a mansion in the citadel of Naxos, two tower-houses at Chalki and Melanes, and they served as consuls of Britain (19th c.). This particular coat-of-arms, is to be found above the entrance of their family tower-house in Chalki (later belonging to the Gratsia and Barozzi families) and is attributed to the count Georgios Frangopoulos (surnamed “aga”), who bought and renovated this particular tower in 1795.
The Fragkopoulos House in Mystras, Laconia, Greece (One of the most well known Houses in Mystras which in the 14th and 15th centuries, it served as the capital of the Byzantine Despotate of the Morea). The house belonged to Ioannis Fragopoulos, the leader of Mystras, “owner” of the monastery of Pantanassa at Mystras.
Reference about Constantine Fragkopoulos sent by Alexios III, Byzantine emperor from 1195 to 1203, to the Black Sea at around 1200 during conflicts between Turkish and Byzantine merchants (The Crusades From the Prespective of Byzantium and the Muslim World, p. 188 )