The narrator and main character in VN's novel Dar ("The Gift," 1937), Fyodor Konstantinovhich Godunov-Cherdyntsev would have never met and fallen in love with Zina Mertz, if he did not move to 15 Agamemnonstrasse (the Shchyogolevs' Berlin address):
«Здравствуйте, – сказал Федор Константинович, кланяясь телефону, – мне Александра Яковлевна…»