▁This ▁was ▁hardly ▁the ▁behaviour ▁of ▁a ▁mother ▁who ▁believed , ▁or ▁even ▁just ▁sus pected , ▁that ▁Richard ▁had ▁ordered ▁the ▁death s ▁of ▁both ▁her ▁young ▁sons . ▁▁▁ ▁There ▁is ▁no ▁contemporary ▁recorded ▁evidence ▁that ▁the ▁princes ▁were ▁missing ▁from ▁the ▁Tower ▁before ▁Henry ▁VII ▁took ▁over ▁cust ody ▁of ▁them . ▁It ▁is ▁only ▁at ▁that ▁jun ct ure ▁that ▁the ▁rum ours ▁and ▁spec ulative ▁accus ations ▁start ▁to ▁be ▁recorded ▁in ▁historical ▁documents . ▁ ▁Grant ▁and ▁his ▁American ▁collabor ator ▁argue ▁that ▁there ▁is ▁little ▁evidence ▁of ▁resistance ▁to ▁Richard ' s ▁rule ▁( ign oring ▁Buck ingham ' s ▁re bell ion ). ▁They ▁allow ▁that ▁there ▁were ▁rum ours ▁of ▁his ▁murder ing ▁the ▁princes ▁during ▁his ▁lifetime , ▁but ▁they ▁decide ▁that ▁the ▁rum ours ▁had ▁little ▁circul ation , ▁and ▁attribute ▁them ▁to ▁the ▁C roy land ▁Chron icle ▁and ▁to ▁the ▁Lord ▁Chan cell or ▁of ▁France , ▁and ▁ultimately ▁to ▁T ud or ▁sympath iser ▁John ▁Mort on . ▁They ▁also ▁propose ▁that ▁Mort on ▁was ▁the ▁actual ▁author ▁of ▁Thomas ▁More ' s ▁bi ography ▁of ▁Richard , ▁suggesting ▁that ▁the ▁incomplete ▁manuscript ▁found ▁after ▁More ' s ▁death ▁was ▁an ▁un fin ished ▁copy ▁by ▁More ▁of ▁Mort on ' s ▁lost ▁original . ▁They ▁conclude ▁that ▁the ▁princes ▁probably ▁remained ▁alive ▁throughout ▁Richard ' s ▁reign ▁and ▁were ▁later ▁killed ▁by ▁Henry . ▁ ▁Liter ary ▁significance ▁and ▁criticism ▁On ▁its ▁publication ▁Anthony ▁B ouch er ▁called