Although most of the Portuguese aristocracy was loyal to his cause, King John I of Castile did not repeat the Castilian successes of the earlier Fernandine Wars (Guerras Fernandinas) and failed to win Coimbra and Lisbon.
Meskipun sebagian besar aristokrasi Portugis setia pada perjuangannya, Raja Juan I dari Kastila tidak mengulangi keberhasilan Kastila dari Perang Fernando sebelumnya (Guerras Fernandinas) dan gagal memenangkan Coimbra dan Lisboa.