Question: Who died earlier, Egor Popov or Eugène Grébaut?
Sentence (from "Egor Popov"): A relative of inventor Alexander Stepanovich Popov, Egor Popov was born in Kiev, Russian Empire( now capital of Ukraine), and after moving to America in 1927, he eventually earned a B.S. from UC Berkeley, his master's degree from MIT and his doctorate degree from Stanford in 1946.
Relevant evidence: No