ation ▁than ▁his ▁marriage ▁to ▁Elizabeth ▁supported ▁it . ▁Re pe al ▁and ▁retro active ▁supp ression ▁of ▁Tit ulus ▁Reg ius ▁immediately ▁made ▁the ▁oldest ▁of ▁her ▁brothers ▁( Ed ward , ▁Prince ▁of ▁Wales ▁and ▁un c rown ed ▁King ▁Edward ▁V ▁of ▁England ▁between ▁ 9 ▁April ▁ 1 4 8 3 , ▁when ▁his ▁father ▁Edward ▁IV ▁died , ▁until ▁ 2 5 ▁June ▁ 1 4 8 3 , ▁when ▁Tit ulus ▁Reg ius ▁was ▁en act ed ) ▁the ▁legit imate ▁reign ing ▁monarch ▁once ▁again , ▁and ▁his ▁younger ▁ ▁brother ▁( Rich ard ▁of ▁Sh rew s bury , ▁Duke ▁of ▁York ) ▁his ▁immediate ▁legit imate ▁he ir . ▁Con sequently , ▁once ▁Tit ulus ▁Reg ius ▁was ▁repe aled ▁and ▁er adic ated ▁the ▁two ▁re - leg it im ised ▁princes ▁would ▁similarly ▁have ▁to ▁be ▁' rem oved ' ▁along ▁with ▁it . ▁ ▁With ▁Tit ulus ▁Reg ius ▁en act ed ▁the ▁two ▁princes ▁represented ▁no ▁threat ▁what so ever ▁to ▁Richard ▁once ▁he ▁was ▁crown ed ▁king . ▁ ▁With ▁Tit ulus ▁Reg ius ▁repe aled ▁and ▁suppress ed ▁the ▁two ▁princes ▁had ▁a ▁much ▁more ▁legit imate ▁claim ▁to ▁the ▁throne ▁than ▁Henry ▁T ud or ▁did , ▁even ▁if ▁he ▁was ▁married ▁to ▁their ▁ ▁sister ▁after ▁he ▁was ▁crown ed . ▁Therefore , ▁Henry ▁had ▁a ▁strong ▁mot ive ▁for ▁killing ▁his ▁future ▁brothers - in - law ▁once ▁he ▁initi ated ▁the ▁repe al ▁and