Linked from
The 8 pages that link to Sakamoto Ryōma, each with the reason it gives.
Tokugawa shogunateRelated: His diplomacy helped unite two domains against the Tokugawa government.
BakumatsuRelated: His diplomacy helped bring two powerful anti-shogunate domains together.
Satsuma-Chōshū AllianceRelated: He mediated between domains whose leaders distrusted one another.
Katsu KaishūRelated: Ryōma studied naval affairs under Katsu and became his prominent associate.