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.
Around this time, Ryoma had 
arrived at the Satsuma Domain,
Ryoma había llegado a Satsuma
E quando Ryoma chegou
no Domínio Satsuma,