Title: Pi︠a︡tai︠a︡ zapovedʹ
Subjects: Family, Biography
Places: Russia (Federation)
People: Zhan Lʹvovich Arens (1889-1938), Elena Mikhaĭlovna Piontkevich-Arens (1902-1988), Alekseĭ Zhanovich Arens, Arens family