Complex sentence: In 1829, the then young and unknown Nikolai Gogol rented a room in that house, where he wrote Evenings on a Farm Near Dikanka, as commemorated by a plaque on the house.
Split into simpler sentences: In 1829, then young and unknown Nikolai Gogol rented a room in that house. That's where he wrote Evenings on a Farm Near Dikanka, the fact commemorated by the plaque on the house.