Thereafter, the time from the end of Russo-Japanese war and the coup in 1913 was called "Kei-En era" (Katsura-Saionji era): Katsura, supported by Aritomo YAMAGATA, a Genro and Saionji, supported by Hirobumi ITO, another Genro, took turns becoming a Prime Minister and forming his cabinet.
以後、元老・山縣有朋に支えられた桂と元老・伊藤博文に支えられた西園寺が交互に首班となって組閣したことから、の日露戦争後から、の大正二年の政変までの時期を桂園時代（けいえんじだい）と呼ぶ。