Chen Lu
From 27 January 1915 to 17 May 1916 he served as Minister of Foreign Affairs for a third time, in the "northern" government in Beijing which enjoyed international recognition, undertaking difficult negotiations with Japan and Russia. He became Foreign Minister for the fourth time on 30 November 1917. He served until 13 August 1920, with deputy minister Chen Lu becoming acting minister during his absence for the peace talks in Paris (November 1918 to December 1919).