Motochika was the son of [[Mimiura Iechika|Mimura Kii no kami Iechika]]. His domain lay in [[Bitchu province|Bitchû province]] His father was assassinated in [[1566]] this was suspected to have been arranged by his rival [[Ukita Hideie]]. Motochika was forced to call on the assistance of the [[Mori clan|Môri]] when his domain was threatened by former [[Amako clan|Amako]] retainers under [[Yamanaka Shikanosuke]]. He later entered into secret communications with the [[Oda clan|Oda]] which, unfortunately, came to the attention of the Môri and made them enemies. Motochika found himself assailed by an overwhelming Môri army in [[1575]] and lost his [[Matsuyama Castle]] to [[Kobayakawa Takakage]]. He escaped the castle at the last minute but was injured in the effort, afterwards committing suicide.
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Motochika was the son of [[Mimiura Iechika|Mimura Kii no kami Iechika]]. His domain lay in [[Bitchu province|Bitchû province]] His father was assassinated in [[1566]] this was suspected to have been arranged by his rival [[Ukita Hideie]]. Motochika was forced to call on the assistance of the [[Mori clan|Môri]] when his domain was threatened by former [[Amako clan|Amako]] retainers under [[Yamanaka Shikanosuke]]. He later entered into secret communications with the [[Oda clan|Oda]] which, unfortunately, came to the attention of the Môri and made them enemies. Motochika found himself assailed by an overwhelming Môri army in [[1575]] and lost his [[Matsuyama castle]] to [[Kobayakawa Takakage]]. He escaped the castle at the last minute but was injured in the effort, afterwards committing suicide.
His grandfather [[Mimura Munechika]] had supported [[Hosokawa Takakuni]].
His grandfather [[Mimura Munechika]] had supported [[Hosokawa Takakuni]].