Pyotr Nikolayevich Kropotkin
Pyotr Nikolayevich Kropotkin ( ; November 24 , 1910 , Moscow – 17 January 1996 , Moscow ) was a Soviet Russian geologist , tectonician , and geophysicist . 
<triplet> Pyotr Nikolayevich Kropotkin <subj> 17 January 1996 <obj> date of death <subj> Soviet <obj> country of citizenship