João de Alpoim (born-14th-century) was a Portuguese nobleman.

[2] He was married to Catarina Perestrello, daughter of a noble family.

[3] João de Alpoim was sent by John I of Portugal, on a diplomatic mission to demand from King Henry III of Castile, that he fulfill the provisions of the treaty of May 15, 1393.

You can help Wikipedia by expanding it.This biographical article of a European noble is a stub.

You can help Wikipedia by expanding it.This biographical article related to the military of Portugal is a stub.