▁Ga ul ▁( H yd ati us ▁says ▁to ▁A rel ate ) ▁to ▁collect ▁all ▁the ▁available ▁forces , ▁probably ▁the ▁Vis ig oth ▁guard ▁he ▁had ▁just ▁dis band ed ; ▁finally ▁he ▁led ▁his ▁forces ▁against ▁the ▁troops ▁of ▁Ric imer , ▁near ▁P iac enza . ▁The ▁Emperor ▁and ▁his ▁army ▁entered ▁the ▁city ▁and ▁attacked ▁the ▁huge ▁army ▁led ▁by ▁Ric imer , ▁but ▁after ▁a ▁great ▁mass acre ▁of ▁his ▁men , ▁including ▁Mess ian us , ▁Av it us ▁fled ▁on ▁ 1 7 ▁or ▁ 1 8 ▁October ▁ 4 5 6 . ▁In ▁the ▁immediate ▁after math ▁Ric imer ▁sp ared ▁his ▁life , ▁but ▁forced ▁him ▁to ▁become ▁Bishop ▁of ▁P iac enza . ▁ ▁Death ▁▁ ▁Av it us ' ▁Gall ic ▁supp or ters ▁may ▁still ▁have ▁recogn ised ▁him ▁as ▁em peror , ▁despite ▁his ▁de position . ▁Sid on ius ▁Apol lin aris ▁tells ▁of ▁a ▁failed ▁coup ▁d ' état ▁in ▁Ga ul ▁organ ised ▁by ▁one ▁Mar cell us ▁and ▁probably ▁aim ed ▁at ▁bringing ▁Av it us ▁back ▁on ▁the ▁throne . ▁The ▁contemporary ▁historian ▁H yd ati us , ▁who ▁lived ▁in ▁Spain , ▁considered ▁the ▁year ▁ 4 5 7 ▁the ▁third ▁of ▁Av it us ' ▁reign ; ▁Av it us ' ▁own ▁intent ions ▁are ▁not ▁known , ▁nor ▁are ▁the ▁manner ▁and ▁date ▁of ▁his ▁death , ▁of ▁which ▁there ▁are ▁several ▁versions . ▁In ▁some , ▁he ▁was ▁told ▁that