▁once ▁more ▁serving ▁L oth ar , ▁died ▁in ▁Italy ▁in ▁ 8 3 6 ▁during ▁a ▁pl ague . ▁ ▁Jon as ▁of ▁Or lé ans ▁addressed ▁his ▁" mir ror ▁of ▁princes " ▁work ▁De ▁Institution e ▁la ical i ▁to ▁Mat fr id . ▁ ▁A ▁second ▁Mat fr id , ▁pres umed ▁to ▁be ▁the ▁son ▁of ▁the ▁first , ▁was ▁active ▁in ▁L oth aring ia ▁during ▁the ▁reign s ▁of ▁L oth ar ▁and ▁his ▁son ▁L oth ar ▁II , ▁a ▁frequent ▁witness ▁to ▁their ▁char ters ▁in ▁the ▁period ▁from ▁ 8 4 3 ▁to ▁ 8 6 0 . ▁The ▁third ▁Mat fr id , ▁pres umed ▁son ▁of ▁the ▁second , ▁was ▁active ▁in ▁the ▁period ▁ 8 6 7 ▁to ▁ 8 7 8 . ▁▁ ▁Later ▁members ▁of ▁the ▁Mat fr iding ▁cl an ▁included ▁God f rey ▁I , ▁Duke ▁of ▁Lower ▁Lor raine . ▁ ▁References ▁▁▁ ▁God man , ▁Peter , ▁and ▁Collins , ▁Roger , ▁edit ors . ▁Char lemagne ' s ▁He ir : ▁New ▁pers pect ives ▁on ▁the ▁reign ▁of ▁Louis ▁the ▁P ious . ▁Oxford ▁University ▁Press , ▁ 1 9 9 0 . ▁▁ ▁Je ep , ▁John ▁M ., ▁ed . ▁Med ieval ▁Germany : ▁an ▁en cyc lopedia , ▁sv ▁" Mat fr id ings ". ▁Rout ledge , ▁ 2 0 0 1 . ▁▁▁ ▁Rich é , ▁Pierre . ▁D iction naire ▁des ▁Fran cs : ▁Les ▁Carol