King John 1st of Portugal (House of Aviz)
King John the 1st of Portugal married Philippa of Lancaster,daughter of John Gaunt, 1st Duke of Lancaster. Sister of King Henry lV of England. They had several famous children.
The Marriage of Philippa and John the 1st.. The renewal of "The Anglo Portuguese Treaty of Windsor
English and Northern European Crusadors 1147 on their way to the Holy land , On their second crusade.. Stopped to participate in the siege of Lisbon to Help King Afonso Henriques conquer the city .