The 1878 Treaty of San Stefano was a treaty between the Russian and Ottoman empires at the conclusion of the Russo-Turkish War of 1877–1878. It was signed at San Stefano, then a village west of Constantinople, on 3 March [O.S. 19 February] 1878 by Count Nicholas Pavlovich Ignatiev and Aleksandr Nelidov on behalf of the Russian Empire and by Foreign Minister Saffet Pasha and Ambassador to Germany Sadullah Pasha on behalf of the Ottoman Empire.