Takatomo was a younger son of [[Yuki Masatomo|Yûki Masatomo]] and became heir to the [[Oyama clan|Ôyama]] family of [[Shimotsuke province]]. He clashed with the Nasu family and later submitted to the advances of [[Uesugi Kenshin]] and became an ally of the latter. Takatomo's second son [[Yuki Harutomo|Harutomo]] was adopted by the former's brother Masakatsu.
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Takatomo was a younger son of [[Yuki Masatomo|Yûki Masatomo]] and became heir to the [[Oyama clan|Oyama]] family of [[Shimotsuke province]]. He clashed with the Nasu family and later submitted to the advances of [[Uesugi Kenshin]] and became an ally of the latter. Takatomo's second son [[Yuki Harutomo|Harutomo]] was adopted by the former's brother Masakatsu.