ALPHONSO IV. was born in 1290, and in 1325 succeeded his
father, Dionis, whose death he had hastened by his intrigues and
rebellions. Hostilities with the Castilians and with the
Moors occupied many years of his reign, during which he gained
some successes; but by consenting to the barbarous murder of
Inez de Castro, who was secretly espoused to his son Peter,
he has fixed an indelible stain on his character. Enraged
at this barbarous act, Peter put himself at the head of an
army and devastated the whole of the country between the
Douro and the Minho before he was reconciled to his father.
Alphonso died almostimmediately after, on the 12th of May 1357.
Initial text from 1911 encyclopedia -- Please update as needed