Otto Wallach — chem (nobel) with roots in the (Rus connection)
Otto Wallach (1847–1931) was a German chemist, born in Königsberg, Prussia, and raised in Stettin and Potsdam. He took his doctorate at Göttingen in 1869, taught at the University of Bonn from 1870 to 1889 and directed the Chemical Institute at Göttingen from 1889 until he retired in 1915. He received the 1910 Nobel Prize in Chemistry for his work on alicyclic compounds, and was a pioneer of the systematic study of terpenes. He died in Göttingen in 1931.
Tracing the roots — Königsberg (Prussia)
Wallach was born in Königsberg in 1847, when the city was part of the Kingdom of Prussia. His father, a Prussian civil servant, came from a Jewish family that had converted to Lutheranism, and his mother was ethnically German. Königsberg was captured by the Soviet Union in April 1945 and renamed Kaliningrad in 1946, after Wallach's death; no Russian-Empire ancestor is documented.