Summary from Wikipedia

Zadkine was born on 28 January 1888 as Yossel Aronovich Tsadkin (Russian: Иосель Аронович Цадкин) in the city of Vitebsk, in the Russian Empire (now Belarus).[3][4] He was born to a baptized Jewish father and a mother named Zippa-Dvoyra, who he claimed to be of Scottish origin.[5] Archival materials state that Iosel-Shmuila Aronovich Tsadkin was of Jewish faith and studied in the Vitebsk City Technical School between 1900 and 1904. He also studied in the Yury Pen's art school with would-be artists Marc Chagall (then Movsha Shagal)[6] and Victor Mekler (then Avigdor Mekler). ...