 Nyora kupfuurira kweiyi ndima - Maximian akaronga kudengenyeka kwakakundikana mukurwisana naConstantine ndokuzviuraya muna 310. Gore rimwe gare gare, Galerius naDiocletian akarega basa vakafa, vachisiya Constantine, Licinius, Maxentius naMaximinus varipo. Constantine naLicinius vakakurumidza kusvika pachibvumirano vachibvumirana kuva vatongi vane kodzero nemhaka yokuti nzvimbo dzavo dzakanga dzakaparadzaniswa noumambo hwaMaxentius. Constantine akapinda muItaly uye akakunda Maxentius paMilvian Bridgepedyo neguta reRoma muna 312. Maxentius akanyura muTiber uye Constantine akatora Italy neAfrica. Akasimbisa mubatanidzwa wake naLicinius pamusangano wakaitwa muMilan muna February 313. Ivo vakadzorera rusununguko rworudzidziso, vachibvisa mitemo yose yaiganhurira maruramiro avagari vemo avaKristu. Kunyange zvazvo chibvumirano chavo chisina kunyorwa zviri pamutemo, zvino chinozivikanwa zvisina kururama seMutemo weMilan. Pashure pokudzokera kumabvazuva, Licinius akakunda Maximinus zvine mutsindo muThrace muna April 313. Pashure pokukunda kwavo, ukama pakati paConstantine naLicinius hwakava hwakaoma. Muna 317, Licinius aifanira kupa Illyricum kuna Constantine. Makore manomwe gare gare, Constantine akakunda Licinius paChrysopolis ndokumanikidzira kuti abve pachigaro. 