▁by ▁Oxford ▁( 1 9 9 3 ) ▁and ▁Cambridge ▁( 1 9 9 5 ). ▁In ▁ 1 9 6 8 , ▁she ▁received ▁an ▁International ▁P ain ting ▁Prize ▁at ▁the ▁Ven ice ▁B ienn ale . ▁In ▁ 2 0 0 3 , ▁she ▁was ▁awarded ▁the ▁Pra em ium ▁Imper iale , ▁and , ▁in ▁ 1 9 9 8 , ▁she ▁became ▁one ▁of ▁only ▁ 6 5 ▁Comp an ions ▁of ▁Hon our ▁in ▁Britain . ▁As ▁a ▁board ▁member ▁of ▁the ▁National ▁Gallery ▁in ▁the ▁ 1 9 8 0 s , ▁she ▁blocked ▁Margaret ▁Th atch er ' s ▁plan ▁to ▁give ▁an ▁ad jo ining ▁piece ▁of ▁property ▁to ▁developers ▁and ▁thus ▁helped ▁ensure ▁the ▁event ual ▁construction ▁of ▁the ▁museum ' s ▁S ains bury ▁Wing . ▁R iley ▁has ▁also ▁received ▁the ▁Kais err ing ▁of ▁the ▁city ▁of ▁G os lar ▁in ▁ 2 0 0 9 ▁and ▁the ▁ 1 2 th ▁Rub ens ▁Prize ▁of ▁Sie gen ▁in ▁ 2 0 1 2 . ▁Also ▁in ▁ 2 0 1 2 , ▁she ▁became ▁the ▁first ▁woman ▁to ▁receive ▁the ▁, ▁the ▁Dutch ▁art ▁prize ▁recogn ising ▁the ▁use ▁of ▁colour . ▁ ▁Phil anth ropy ▁ ▁R iley ▁is ▁a ▁Pat ron ▁of ▁P aint ings ▁in ▁H osp it als , ▁a ▁char ity ▁established ▁in ▁ 1 9 5 9 ▁to ▁provide ▁art ▁for ▁health ▁and ▁social ▁care ▁in ▁England , ▁Wales ▁and ▁Northern ▁Ireland .