▁A yer ▁( they ▁remained ▁married ▁until ▁her ▁mother ' s ▁death ). ▁As ▁her ▁father ▁was ▁at ▁the ▁time ▁a ▁prominent ▁political ▁figure , ▁N ig ella ▁found ▁some ▁of ▁the ▁jud g ements ▁and ▁pre con ception s ▁that ▁were ▁formed ▁about ▁her ▁fr ustr ating . ▁She ▁has ▁attributed ▁her ▁unh app iness ▁as ▁a ▁child , ▁in ▁part , ▁to ▁the ▁problem atic ▁relationship ▁she ▁had ▁with ▁her ▁mother . ▁ ▁Law son ' s ▁mother ▁died ▁of ▁li ver ▁cancer ▁in ▁West min ster , ▁London ▁at ▁the ▁age ▁of ▁ 4 8 . ▁Law son ' s ▁full - blo od ▁sib lings ▁are ▁her ▁brother , ▁Domin ic , ▁former ▁editor ▁of ▁The ▁Sunday ▁Te legraph , ▁sister ▁Hor atia , ▁and ▁sister ▁Thomas ina , ▁who ▁died ▁of ▁breast ▁cancer , ▁in ▁her ▁early ▁th irt ies , ▁in ▁ 1 9 9 3 ; ▁She ▁has ▁a ▁half - bro ther , ▁Tom , ▁who ▁is ▁currently ▁head master ▁at ▁East bourne ▁College , ▁and ▁a ▁half - s ister , ▁Em ily ; ▁Tom ▁and ▁Em ily ▁are ▁her ▁father ' s ▁children ▁by ▁his ▁second ▁wife . ▁Law son ▁is ▁a ▁cousin ▁to ▁both ▁George ▁Mon bi ot ▁and ▁F iona ▁Sh ack leton ▁through ▁the ▁Sal mon ▁family . ▁ ▁An c est ry ▁T aking ▁part ▁in ▁the ▁third ▁series ▁of ▁the ▁BBC ▁family - history ▁document ary ▁series , ▁Who ▁Do ▁You ▁Think ▁You ▁Are ?, ▁Law son ▁sought