Pedzisa mutsara unotevera: Kęstutis akashandisa mauto akasiyana-siyana pamwe chete nenzira dzokukurukurirana muhondo yake pamiganhu yekumadokero yeGrand Duchy yeLithuania. Muna 1349, kuti arege kuramba achinetsana neTeutonic Order, akatanga kutaurirana naPapa Clement VI nezvekutendeutswa kweLithuania kuva chiKristu, achivimbiswa korona dzeumambo kwaari nevanakomana vake. Algirdas nokudisa akaramba ari parutivi pebhizimisi uye akanga ane hanya negadziriro muchikamu cheRuthenian chehurumende. Murevereri munhaurirano, Mambo wePoland Casimir III, akaita kurwisa kusingatarisirwi paVolhynia neBrest muna Gumiguru 1349 izvo zvakaparadza chirongwa cheKęstutis. Mukati
Hondo yePolish-Lithuanian yeVolhynia, Mambo Louis I weHungary akaita chibvumirano cherunyararo naKęstutis musi wa15 Nyamavhuvhu 1351, maererano naKęstutis akazvipira kugamuchira chiKristu uye kupa Humambo hweHungary rubatsiro rwechiuto, mukutsinhana nekorona yeumambo. Chibvumirano chacho chakabvumidzwa netsika yechihedheni naKęstutis kuti agutsikane nerimwe divi. Kutaura zvazviri, Kęstutis akanga asina chinangwa chokuteerera chibvumirano chacho uye akatiza achienda kuBuda.