Kasancewar Gepids a yakin Huns a kan Daular Roma ya kawo musu ganima da yawa, yana ba da gudummawa ga ci gaban arziƙin Gepid aristocracy.^[12] Wani "masu ƙima" a ƙarƙashin umurnin Ardaric ya kafa reshen dama na sojojin Attila the Hun a yakin yankin Catalaunian a shekara ta 451. ^[13] A jajibirin babban gamuwa tsakanin sojojin kawance, Gepids. kuma Franks sun haɗu da juna, na ƙarshe suna yaƙi don Romawa da na farko don Huns, kuma da alama sun yi yaƙi da juna don tsayawa.Attila the Hun ya mutu ba zato ba tsammani a cikin 453. Rikice-rikice tsakanin 'ya'yansa maza sun zama yakin basasa, wanda ya ba da damar mutane masu magana su tashi cikin tawaye.^[14] A cewar Jordanes, Sarkin Gepid, Ardaric, wanda "ya fusata saboda yawancin al'ummomi ana ɗaukar su kamar bayi na yanayin mafi ƙasƙanci", ^[15] shi ne farkon wanda ya ɗauki makamai a kan Huns.An yi wannan gagarumin yakin ne a kogin Nedao da ke Pannonia a shekara ta 454 ko 455. ^[16] A cikin yakin, hadin gwiwar sojojin Gepids, Rugii, Sarmatians da Suebi sun fatattaki Huns da abokansu, ciki har da Ostrogoths.^[17] Gepids ne suka jagoranci tsoffin abokan Attila, kuma suka kafa ɗaya daga cikin sabbin masarautu mafi girma kuma mafi yanci, ta haka suka sami "babban birnin martaba wanda ya ci gaba da mulkinsu fiye da ɗari ɗaya".^[18] Ya rufe babban yanki na tsohon lardin Roman Dacia, arewacin Danube, kuma idan aka kwatanta da sauran masarautun Danubian na Tsakiya, ya kasance ba shi da alaƙa da Roma.Lombards da Avars sun ci Gepids a karni na baya a cikin 567, lokacin da Constantinople ya ba su goyon baya.Wasu Gepids sun shiga Lombards a cikin nasarar da suka yi na Italiya, wasu sun koma cikin yankin Romawa, wasu Gepids kuma har yanzu suna zaune a yankin tsohuwar mulkin bayan da Avars suka ci shi.