Katsura Kotaro of Choshu and Saigo Takamori of Satsuma. These two would be the lyncpins of the Joi revolution that disposed of Tokugawa rule, but they didn't always get along.
Katsura Kogoro and Sakamoto 
Ryoma ran into each other.
Katsura Kogoro y Sakamoto Ryoma
se toparon.
Katsura Kogoro e Sakamoto
Ryoma se encontram.