Calliope Tatti (Greek: Καλλιόπη Τάττη) was born in Thessaloniki, Ottoman Empire in 1894.
After his premature death in 1917 she got married in 1922 to the chairman of the BAR association of Thessaloniki George Seremetis who was one of the most prominent attorneys in the city.
Thessaloniki was captured by the Hellenic Army under Crown Prince Constantine during the first year of the First Balkan War (1912).
Tatti immediately after the capture of Thessaloniki she volunteered to serve as a nurse in the hospital organized by the "Central City School" that was taking care of the wounded soldiers during both of the Balkan Wars.
She offered a great deal of her own financial resources for the relief of her fellow-citizens during the starvation period of the German occupation (1941–1944).