All times in UTC ·
Dashed edge = started before, or continues beyond, this day
Events on Monday 20 May 1450 2
1392 – 1450Peter, Duke of Coimbra (1392-1450)Died 20 May 1450, aged 57The former regent of Portugal and uncle of King Afonso V was killed at the Battle of Alfarrobeira after years of rivalry over control of the crown. His death ended the political faction that had opposed the king's inner circle. He was posthumously rehabilitated decades later.
1450Battle of AlfarrobeiraPower struggle ends Portuguese regency rivalryForces loyal to King Afonso V defeated and killed his uncle, Peter, Duke of Coimbra, the former regent of Portugal, near Alverca. The battle ended years of tension between the king and his uncle's faction over control of the crown. Peter's death secured Afonso V's personal rule.