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''O-ie sôdô'', or "house disturbances," were factional conflicts which took place within the leaderships of [[han|domains]], within the households of lords, or amongst their retainers. Some of the most famous such disturbances, such as the [[Date Disturbance]] of [[1671]], revolved around disputes over the succession of the ''daimyô'', with one faction favoring one heir and another faction favoring another. However, factional disputes could also be over policy positions, or over leadership of the ''daimyô's'' advisors or officials, without challenging the succession of the ''daimyô'' himself; [[Tsushima han]] saw a number of internal coups of both types in quick succession in the 1860s.<ref>Robert Hellyer, ''Defining Engagement'', Harvard University Press (2009), 227-230.</ref>

''O-ie sôdô'', or "house disturbances," were factional conflicts which took place within the leaderships of [[han|domains]], within the households of lords, or amongst their retainers. Some of the most famous such disturbances, such as the [[Date Disturbance]] of [[1671]], revolved around disputes over the succession of the ''daimyô'', with one faction favoring one heir and another faction favoring another. However, factional disputes could also be over policy positions, or over leadership of the ''daimyô's'' advisors or officials, without challenging the succession of the ''daimyô'' himself; [[Tsushima han]] saw a number of internal coups of both types in quick succession in the 1860s.<ref>Robert Hellyer, ''Defining Engagement'', Harvard University Press (2009), 227-230.</ref>

Other prominent ''oie sôdô'' of the [[Edo period]] include the [[Amabe Dispute]] in [[Tokushima han]], and a dispute in [[1681]] in [[Takada han]] which ended in the attainder of [[Matsudaira Mitsunaga]].

Other prominent ''oie sôdô'' of the [[Edo period]] include the [[Amabe Dispute]] in [[Tokushima han]], and a dispute in [[1681]] in [[Takada han]] which ended in the attainder of [[Matsudaira Mitsunaga]], as well as the ''Oyura sôdô'', a dispute in the 1840s over the choice of [[Shimazu Narioki|Shimazu Narioki's]] successor, between his sons [[Shimazu Nariakira]] and [[Shimazu Hisamitsu]]; Nariakira won out in the end, being named Narioki's successor, but only after shogunate intervention in the dispute. Nariakira was succeeded in turn, however, by Hisamitsu's young son [[Shimazu Tadayoshi]], placing Hisamitsu in a position of power in the end, after all.

''Oie sôdô'' made for the exciting seeds, or basis, for a number of [[kabuki]] and ''[[ningyo joruri|ningyo jôruri]]'' plays of the time, as well. One of the most famous and popular of these plays, ''[[Meiboku Sendai Hagi]]'', is based loosely on the aforementioned 1671 succession dispute among the [[Date clan]] of [[Sendai han]].<ref>"[http://www.kabuki21.com/msh.php Meiboku Sendai Hagi]," Kabuki21.com.</ref>

''Oie sôdô'' made for the exciting seeds, or basis, for a number of [[kabuki]] and ''[[ningyo joruri|ningyo jôruri]]'' plays of the time, as well. One of the most famous and popular of these plays, ''[[Meiboku Sendai Hagi]]'', is based loosely on the aforementioned 1671 succession dispute among the [[Date clan]] of [[Sendai han]].<ref>"[http://www.kabuki21.com/msh.php Meiboku Sendai Hagi]," Kabuki21.com.</ref>