Edward of Portugal vs Mircea the Elder

Edward succeeded his father John I as King of Portugal. He inherited a prosperous kingdom but faced challenges including the ongoing exploration efforts sponsored by his brother Henry the Navigator and tensions with the nobility.

Edward authorized a disastrous expedition to capture Tangier in Morocco, led by his brother Henry the Navigator. The Portuguese forces were defeated, and Edward's younger brother Ferdinand was taken hostage, leading to a national crisis.

Edward wrote the 'Leal Conselheiro' (Loyal Counselor), a philosophical and moral treatise for the nobility. This work reflects his humanist education and established him as a philosopher-king, influencing Portuguese literature and political thought.

Edward died of the plague at age 47, leaving his young son Afonso V as king. His death triggered a regency crisis, as his widow Eleanor of Aragon and his brother Pedro disputed control, leading to political instability in Portugal.

Mircea the Elder led Wallachian forces to victory against the Ottoman army of Bayezid I at Rovine. The battle halted Ottoman expansion into Wallachia for a period and secured Mircea's rule.

Mircea signed an alliance with King Sigismund of Hungary and W

Mircea contributed Wallachian troops to the Crusader army that was decisively defeated by the Ottomans at Nicopolis. The defeat weakened the anti-Ottoman coalition and left Wallachia vulnerable.

Ottoman forces under Mehmed I invaded Wallachia, forcing Mircea to accept vassalage and pay tribute. This event marked the beginning of Wallachia's subordination to the Ottoman Empire.