, ▁holding ▁the ▁title ▁until ▁the ▁peer age ▁was ▁abol ished ▁in ▁ 1 9 4 7 . ▁He ▁subsequently ▁became ▁the ▁li br arian ▁of ▁the ▁National ▁Diet ▁Library ▁from ▁ 1 9 5 1 ▁to ▁ 1 9 5 3 ▁and ▁then ▁taught ▁as ▁a ▁lect urer ▁and ▁professor ▁of ▁history ▁at ▁N ago ya ▁University ▁( 1 9 5 3 – 1 9 5 9 ) ▁and ▁at ▁R ik ky ū ▁University ▁( 1 9 5 9 – 1 9 6 5 ). ▁He ▁was ▁awarded ▁the ▁As ah i ▁Prize ▁in ▁ 1 9 9 3 , ▁two ▁years ▁before ▁his ▁death . ▁He ▁married ▁Y on eda ▁Ya ek o ▁( 1 9 1 0 – ??? ?) ▁and ▁had ▁two ▁children , ▁Y as ush i ▁( b . ▁ 1 9 3 4 ) ▁and ▁Sh ig ek o ▁( b . ▁ 1 9 3 6 ). ▁Y as ush i ▁married ▁M ats ud ai ra ▁Na oko ▁( b . ▁ 1 9 4 0 ) ▁and ▁had ▁a ▁daughter , ▁Ak iko ▁( b . ▁ 1 9 6 5 ). ▁▁ Ō k ub o ▁also ▁had ▁four ▁il leg it imate ▁children ▁by ▁a ▁mist ress . ▁ ▁In ▁fiction ▁ ▁In ▁the ▁m anga / an ime ▁series ▁R ur ou ni ▁K ens hin , ▁ Ō k ub o ▁T osh im ichi ▁appears ▁to ▁seek ▁Him ura ▁K ens hin ' s ▁assistance ▁in ▁destroy