With which company JSC merged withwhich was based in Saint Petersburg, there are branches in Moscow?
Donavia: JSC "Donavia" (Russian: ОАО «Донавиа» ), later Aeroflot-Don (Russian: ОАО «Аэрофлот-Дон» ), was an Aeroflot subsidiary airline based in Rostov-on-Don, Russia. Rossiya Airlines:  It is based in Saint Petersburg, there are branches in Moscow Vnukovo International Airport, Rostov-on-Don Airport and Orenburg Tsentralny Airport.
i don't know