Complex sentence: Baron Anton Antonovich Delvig (;, Moscow -, St. Petersburg) was a Russian poet and journalist who studied in the Tsarskoye Selo Lyceum together with Alexander Pushkin, and Wilhelm Küchelbecker with whom he became close friends.
Split into simpler sentences: Baron Anton Antonovich Delvig (;, Moscow -, St. Petersburg) was a Russian poet and journalist. He studied in the Tsarskoye Selo Lyceum together with Alexander Pushkin, and Wilhelm Küchelbecker with whom he became close friends.