▁who , ▁during ▁the ▁pont ificate ▁of ▁Stephen ▁III , ▁had ▁begun ▁moving ▁against ▁supp or ters ▁of ▁the ▁murder ed ▁Christoph us ▁and ▁his ▁son ▁Ser g ius . ▁Had rian ▁re int rodu ced ▁those ▁who ▁had ▁been ▁p urg ed ▁by ▁A fi arta ▁and ▁sent ▁him ▁away ▁on ▁a ▁diplom atic ▁mission ▁to ▁P avia . ▁This ▁intended ▁to ▁allow ▁time ▁for ▁Had rian ▁to ▁organ ise ▁a ▁case ▁against ▁him , ▁however ▁the ▁mission ▁did ▁not ▁reach ▁P avia ▁before ▁Des ider ius ▁launched ▁an ▁attack ▁against ▁the ▁Pap acy ▁and ▁captured ▁Fa enza , ▁Ferr ara , ▁and ▁Com ac chio . ▁Leo , ▁following ▁this ▁attack , ▁had ▁written ▁Had rian ▁to ▁request ▁support ▁as ▁Lomb ard ▁forces ▁began ▁to ▁pose ▁a ▁threat ▁to ▁R aven na ▁itself . ▁▁▁ ▁During ▁this ▁cha os ▁Had rian ▁decided ▁to ▁act ▁against ▁A fi arta ▁and ▁ordered ▁Arch bishop ▁Leo ▁to ▁have ▁him ▁seized ▁at ▁R aven na ▁on ▁his ▁journey ▁back ▁to ▁Rome . ▁A ▁trib une ▁named ▁Julian ▁was ▁sent ▁on ▁beh alf ▁of ▁Had rian ▁to ▁Leo ▁at ▁R aven na ▁to ▁request ▁this ▁and ▁he ▁was ▁captured . ▁In ▁a ▁further ▁letter ▁Had rian ▁gave ▁Leo ▁greater ▁details ▁as ▁to ▁how ▁he ▁should ▁handle ▁A fi arta , ▁ordering ▁that ▁the ▁prisoner ▁should ▁be ▁sent ▁into ▁ex ile , ▁but ▁Leo , ▁having ▁previously ▁disput ed ▁with ▁agents ▁of ▁Des ider ius ▁similar ▁to ▁A fi arta , ▁wanted ▁him ▁executed . ▁When ▁pap