Roman Osipovich Jakobson was a Russian linguist and literary theorist.
Roman Jakobson
Yakobson before 1917
Roman Jakobson
Prince Nikolai Sergeyevich Trubetzkoy was a Russian linguist and historian whose teachings formed a nucleus of the Prague School of structural linguistics. He is widely considered to be the founder of morphophonology. He was also associated with the Russian Eurasianists.
Nikolai Trubetzkoy