Nyorai kuenderera mberi kweiyi ndima - Imba iyi yakavambwa naMambo John I wePortugal, Grand-Master weOrder yeAviz uye mwanakomana asiri wepamutemo waMambo Pedro I (wePortugal Imba yeBurgundy), uyo akakwira pachigaro mushure mekubudirira kusundira chikumbiro chake panguva ye1383<unk>1385 Portuguese interregnum
. Madzimambo eAviz aizotonga Portugal muNguva yeKutsvaga, achigadza Portugal sesimba renyika yose zvichitevera kusikwa kweUmambo hwePortugal. Muna 1494, Pope Alexander VI akagovera nyika yePortugal neSpain achishandisa chibvumirano cheTordesillas.