▁of ▁her ▁son ▁Louis ▁II ▁of ▁Nap les . ▁Marie ▁signed ▁over ▁her ▁son ' s ▁rights ▁to ▁the ▁order ▁on ▁ 2 4 ▁January ▁ 1 3 8 7 , ▁with ▁the ▁consent ▁of ▁Clement ▁VII . ▁The ▁transaction ▁cost ▁the ▁order ▁ 2 0 , 0 0 0 ▁gold ▁flor ins . ▁Later , ▁the ▁po pe ▁revers ed ▁his ▁end ors ement ▁at ▁the ▁request ▁of ▁the ▁Ach ae an ▁claim ant ▁Ama de us , ▁Lord ▁of ▁P iner olo . ▁▁ ▁Despite ▁these ▁fail ures ▁with ▁the ▁Navar res e , ▁Her edia ▁had ▁continued ▁to ▁use ▁them ▁in ▁his ▁war . ▁Though ▁Peter ▁IV ▁had ▁forb id ▁any ▁H osp it all ers ▁of ▁his ▁real m ▁to ▁travel ▁with ▁Her edia ▁east , ▁he ▁himself ▁had ▁claimed ▁the ▁rights ▁to ▁the ▁Duch y ▁of ▁Ath ens . ▁The ▁Navar res e , ▁under ▁Juan ▁de ▁U rt ub ia , ▁attacked ▁The bes , ▁the ▁capital ▁of ▁the ▁du chy , ▁and ▁Her edia , ▁though ▁friendly ▁with ▁the ▁king , ▁was ▁war ned ▁in ▁a ▁letter ▁to ▁stop ▁ab et ting ▁his ▁enemies ▁( 1 0 ▁September ▁ 1 3 8 0 ). ▁ ▁Life ▁in ▁Av ignon ▁Her edia ▁spent ▁most ▁of ▁his ▁life ▁in ▁Av ignon ▁after ▁ 9 ▁April ▁ 1 3 8 2 , ▁when ▁he ▁emb ark ed ▁for ▁the ▁West ▁with ▁his ▁powers ▁dimin ished ▁some ▁by ▁the ▁un tr ust ing ▁convent ▁in ▁Rh odes . ▁In ▁April