For 10 points—name this home to the Hermitage, formerly known as Petrograd and Leningrad.
On November 19, 1824, hundreds of this city's residents were killed in its worst flood, which brought the Neva River more than a foot above normal. Its founding in 1703 as the "window on Europe" was met with equal sorrow, as the serfs used to build it suffered massive death and disease. For 10 points—name this home to the Hermitage, formerly known as Petrograd and Leningrad.
On November 19, 1824, hundreds of this city's residents were killed in its worst flood, which brought the Neva River more than a foot above normal.
{St. Petersburg}, Russia [prompt on {Petrograd} before it is read; prompt on {Leningrad} before it is read]