740186 Count Pyotr Semyonovich Prozorovsky with his embassy in England in 1670 (litho) by English School, (17th century); Russian State Library, Moscow, Russia; (add.info.: Princes Prozorovsky (Russian: ??郋郱郋?郋赲?郕邽e) were a Russian noble family of Rurikid stock descending from medieval rulers of Yaroslavl and Mologa. Their name is derived from the village of Prozorovo near Mologa, which used to be their only votchina in the 15th century.).