9 5 ), ▁he ▁incorpor ated ▁the ▁don at ary ▁privileges ▁of ▁the ▁seven ▁islands ▁of ▁the ▁Az ores ▁( Cor vo ▁and ▁Fl ores ▁were ▁not ▁included ) ▁into ▁the ▁properties ▁and ▁poss essions ▁of ▁the ▁Crown . ▁ ▁The ▁don at ary ▁system ▁was ▁best owed ▁upon ▁Henry ▁the ▁N avigator ▁at ▁an ▁unknown ▁time , ▁but ▁his ▁order ▁to ▁introduce ▁liv est ock ▁( go ats , ▁cattle , ▁p igs , ▁etc .) ▁on ▁the ▁islands ▁suggests ▁that ▁he ▁would ▁have ▁received ▁juris diction ▁between ▁ 1 4 3 2 ▁and ▁ 1 4 3 8 . ▁This ▁was ▁the ▁same ▁period ▁as ▁the ▁death ▁of ▁King ▁Du arte , ▁and ▁his ▁successor ▁King ▁Af onso ▁V ▁ex empt ed ▁fe es ▁and ▁tax es ▁for ▁five ▁years ▁at ▁his ▁request , ▁suggesting ▁Henry ' s ▁comp liance ▁with ▁the ▁duties ▁of ▁a ▁don at ário . ▁Yet ▁it ▁was ▁only ▁in ▁his ▁last ▁will ▁and ▁test ament ▁that ▁it ▁was ▁explicitly ▁stated ▁that ▁he ▁was ▁prote ctor ▁of ▁the ▁Az ores . ▁The ▁transfer ▁of ▁this ▁title ▁to ▁his ▁nep hew ▁the ▁Inf ante ▁Ferdinand , ▁was ▁in ▁keeping ▁with ▁the ▁Le i ▁M ental ▁proc laimed ▁by ▁his ▁brother ▁in ▁ 1 4 3 4 , ▁that ▁bound ▁Henry ▁to ▁pass ▁on ▁all ▁lands ▁and ▁goods ▁from ▁the ▁King ▁to ▁legit imate ▁male ▁descend ants . ▁If ▁not , ▁then ▁the ▁Crown ▁would ▁reg ain ▁ownership . ▁ ▁The ▁don at ário ▁was ▁expected ▁to ▁promote ▁the