Greek Migration
In 1769, Maria Teresa of Austria demanded the settlement of Balkan orthodox merchants in Hungary. Here: The empress Maria Teresa (1717-1780) on a coin of that period, 1780.

Coin of Maria Teresa

Photograph

A five-drachma coin of Maria Teresa (1740-1780).
I Thessaloniki tou 18ou aiona, Themelio publications, p. 141.