Passage: Piskaryovskoye Memorial Cemetery (Russian: Пискарёвское мемориа́льное кла́дбище) is located in Saint Petersburg, on the Avenue of the Unvanquished (Проспект Непокорённых), dedicated mostly to the victims of the Siege of Leningrad.

Question: What people are mostly in Piskaryovskoye Memorial Cemetery?
victims of the Siege of Leningrad