▁On ▁ 1 3 ▁November ▁of ▁that ▁year , ▁his ▁father ▁ab dic ated ▁following ▁the ▁German ▁Empire ' s ▁defeat ▁in ▁the ▁World ▁War ▁I . ▁Friedrich ▁Christian ▁led ▁the ▁Sax on ▁army ▁home ▁from ▁Belg ium ▁and ▁France ▁to ▁Germany , ▁where ▁they ▁dem obil ized ▁in ▁Ful da . ▁ ▁After ▁the ▁end ▁of ▁World ▁War ▁I , ▁he ▁turned ▁to ▁the ▁study ▁of ▁law ▁at ▁the ▁univers ities ▁of ▁C ologne , ▁Fre ib urg , ▁W roc ław ▁and ▁Wür zburg . ▁▁ ▁The ▁subject ▁of ▁his ▁Ph D ▁th esis ▁was ▁Nicholas ▁of ▁C usa , ▁who ▁contributed ▁significantly ▁to ▁the ▁development ▁of ▁canon ▁law ▁in ▁the ▁late ▁Middle ▁A ges . ▁ ▁While ▁studying ▁in ▁Bres lau , ▁he ▁was ▁a ▁member ▁of ▁the ▁Catholic ▁student ▁union ▁. ▁ ▁However , ▁he ▁res igned ▁his ▁membership ▁in ▁ 1 9 2 8 ▁or ▁ 1 9 2 9 , ▁because ▁of ▁substant ive ▁disag re ement . ▁ ▁On ▁ 9 ▁February ▁ 1 9 2 0 , ▁he ▁joined ▁the ▁K D St . V . ▁Th uring ia ▁Wür zburg . ▁ ▁Here , ▁he ▁met ▁Elisabeth ▁Hel ene ▁( 1 9 0 3 - 1 9 7 6 ), ▁a ▁daughter ▁of ▁Albert , ▁ 8 th ▁Prince ▁of ▁Th urn ▁and ▁T axis ▁and ▁his ▁wife ▁Arch du ch ess ▁Marg are the ▁K lement ine ▁of ▁Austria . ▁ ▁Elisabeth ▁Hel ene ▁was ▁an ▁honor ary ▁chair w oman ▁of ▁the