After having compiled family trees of various sizes that record the Kurasz families of southeast Poland (Przemysl/Lvov) region, I was advised that Kurasz was originally a Hungarian name found in occasional nooks & crannies of Southern Poland in general. It appears that after Napoleon's failure to recreate a Polish state in early 19th cent., the region came under Hungarian administration and Kuraszes were a leading merchant family that moved in from Hungary to open shop. Indeed, there were more Kuraszes in the Budapest phone directory than in the Krakow some years ago. In Budapest, in 1985, I encountered a librarian whose nametag read "Kurasz". She told me that Kurasz was actually a local corruption of an ancient Persian name, "Kurash". The Kurash family was a ruling dynasty in the 8th or 9th century in Persia; after their overturn they later become an influential & quasi-aristocratic merchant family there. During the 15th or 16th centuries, during the Turkish/Ottoman conquest of Persia, the Kurashes refused to embrace Islam. Being too wealthy or influential to eliminate, the Turks deported them clear to the other side of their empire, mostly to Hungary after the Turkish conquest there.