Rallis Family Genealogy

Ny Rallis ancestors came from Greece to North of Balkan Peninsula probably in the second half of the 18 century. We have greek books from l760 and a picture of four Rallis brothers dated l892.My great-grandfather Djura and his tree brothers.They have changed the family name to R. Stefanovic
(R for:Rallis)(Djura R. Stefanovic).My grandmother born l896 was Dr. med.Milena R.Stefanovic.