Сан-Стефанский мир
As the war which he had done so much to bring about did not eventually secure for Russia advantages commensurate with the sacrifices involved, he fell into disfavour with Alexander II in part due to efforts of Count Pyotr Shuvalov, and retired from active service. Soon thereafter the Treaty of San Stefano was revised through the Treaty of Berlin, 1878, signed on Russia behalf by Count Pyotr Shuvalov.