 Stephen Turnbull , in " Nagashino 1575 " , relates the tale of the Takeda clan 's involvement with a fox @-@ woman . The warlord Takeda Shingen , in 1544 , defeated in battle a lesser local warlord named Suwa Yorishige and drove him to suicide after a " humiliating and spurious " peace conference , after which Shingen forced marriage on Suwa Yorishige 's beautiful 14 @-@ year @-@ old daughter Lady Koi — Shingen 's own niece . Shingen , Turnbull writes , " was so obsessed with the girl that his superstitious followers became alarmed and believed her to be an incarnation of the white fox @-@ spirit of the Suwa Shrine , who had bewitched him in order to gain revenge . " When their son Takeda Katsuyori proved to be a disastrous leader and led the clan to their devastating defeat at the battle of Nagashino , Turnbull writes , " wise old heads nodded , remembering the unhappy circumstances of his birth and his magical mother " . 
 Stephen Turnbull , in " Nagashino 1575 " , <a href='uninflect' title='1'><mark>relates</mark></a> the tale of the Takeda clan <a href='null_genetive' title='2'><mark>'s</mark></a>involvement with a fox @-@ woman . The warlord Takeda Shingen , in 1544 , defeated in battle a lesser local warlord named Suwa Yorishige and drove him to suicide after a " humiliating and spurious " peace conference , after which Shingen forced marriage on Suwa Yorishige <a href='null_genetive' title='3'><mark>'s</mark></a>beautiful 14 @-@ year @-@ old daughter Lady Koi — Shingen <a href='null_genetive' title='4'><mark>'s</mark></a>own niece . Shingen , Turnbull <a href='uninflect' title='5'><mark>writes</mark></a> , " was so obsessed with the girl that his superstitious followers became alarmed and believed her to be an incarnation of the white fox @-@ spirit of the Suwa Shrine , <a href='null_relcl' title='6'><mark>who</mark></a><a href='been_done' title='7'><mark>had</mark></a> bewitched him in order to gain revenge . " When their son Takeda Katsuyori proved to be a disastrous leader and led the clan to their devastating defeat at the battle of Nagashino , Turnbull <a href='uninflect' title='8'><mark>writes</mark></a> , " wise old heads nodded , remembering the unhappy circumstances of his birth and his magical mother " . 
Stephen Turnbull , in " Nagashino 1575 " , relate da tale of tdaTakeda clan  involvement with a fox @-@ woman . The warlord Takeda Shingen , in 1544 , defeated in battle a lesser local warlord named Suwa Yorishige and drove him to suicide after a " humiliating and spurious " peace conference , after which Shingen forced marriage on Suwa Yorishige  beautiful 14 @-@ year @-@ old daughter Lady Koi — Shingen  own niece . Shingen , Turnbull write , " was so obsessed with the girl that his superstitious followers became alarmed and believed her to be an incarnation of thdahite fox @-@ spirit of thedawa Shrine , done bewitched em in order to gain revenge . " When their son Takeda Katsuyori proved to b a disastrous leader and led the clan to their devastating defeat at the datle of Nagashino , Turnbull write , " wise old heads nodded , remembering the unhappy circumstances of his birth and his magical mother " .