That member of this clan, Okubo Toshimichi, was a great diplomat who forged a secret alliance with its longtime rival, led by Kido Koin.
One member of this clan was exiled from its domain but allowed to return after the rise of its daimyo Nariakira, whose stepmother Yura promoted her son Hisamitsu as lord of this territory, and allegedly cast black magic on Nariakira's heirs. That member of this clan, Okubo Toshimichi, was a great diplomat who forged a secret alliance with its longtime rival, led by Kido Koin. This clan was plunged into war by the Namamugi Incident, in which one of its retainers killed the merchant Charles Lennox Richardson. After forming a secret pact with Choshu, this domain opposed the shogun at Toba-Fushima. This clan's stronghold Kagoshima Castle was shelled by the British navy in a namesake war in 1863. This clan, which conquered the Ryukyu Islands and made them pay tribute, was also led by a figure defeated at the Battle of Shiroyama, the enormously fat samurai Saigo Takamori. For 10 points, identify this domain that was the namesake of an 1877 rebellion against the Meiji government.
One member of this clan was exiled from its domain but allowed to return after the rise of its daimyo Nariakira, whose stepmother Yura promoted her son Hisamitsu as lord of this territory, and allegedly cast black magic on Nariakira's heirs.
Satsuma domain or clan [or Shimazu; or the Kagoshima Domain until "Kagoshima" is read; the war referred to is the "Anglo-Satsuma War of 1863"]