Prozorovsky's career was furthered by his maternal Galitzine relatives, who helped him to get appointed to the office of Kursk's governor in 1780.

His ancient services were recalled in 1808, when the Russian army resumed its hostilities against Turkey, and Prozorovsky became its Commander-in-Chief.

Prozorovsky's reputation suffered a blow when his attempt to storm of Brailov ended in his army being repelled at enormous loss of life on Russian side.

The old and ailing general asked Alexander I to dispatch a younger and more energetic Mikhail Kutuzov to his aid.

His body was transported to St Petersburg and interred in the Alexander Nevsky Lavra.