Sigismund of Luxembourg vs Taejo of Goryeo

Sigismund, King of Hungary and son of Charles IV, was elected King of Germany by one faction of electors, while Jobst of Moravia was elected by another. This led to a double kingship until Jobst's death in 1411.

Sigismund convened the Council of Constance to end the Western Schism. The council deposed all three rival popes and elected Pope Martin V, restoring unity to the Catholic Church.

Despite granting Jan Hus a safe-conduct to the Council of Constance, Sigismund allowed Hus to be tried and burned at the stake for heresy. This act sparked the Hussite Wars in Bohemia.

Sigismund was crowned Holy Roman Emperor in Rome by Pope Eugene IV. His coronation marked the end of a long struggle for imperial recognition and solidified his authority.

Wang Geon, a general under the Later Goguryeo kingdom, defeated the forces of Gyeon Hwon at Cheonju. This victory solidified his power and set the stage for the founding of the Goryeo dynasty.

Wang Geon declared himself king and founded the Goryeo dynasty, with its capital at Songak (modern Kaesong). He unified the Later Three Kingdoms (Later Goguryeo, Later Baekje, and Silla) through a combination of military conquest and diplomatic marriages.

Taejo of Goryeo completed the unification of the Later Three Kingdoms by defeating the Later Baekje kingdom. This brought the entire Korean peninsula under Goryeo rule, ending the Later Three Kingdoms period.

Taejo issued the Ten Injunctions, a set of political and cultural guidelines for his successors. These injunctions emphasized Confucian governance, Buddhist patronage, and the importance of maintaining good relations with China.