King Sukjong of Goryeo vs Richard of Cornwall

King Sukjong introduced the first official coin currency in Korean history, the 'Haedong Tongbo.' Minted in iron and bronze, these coins were intended to facilitate trade and commerce, replacing barter and cloth as primary mediums of exchange.

King Sukjong launched military campaigns against the Jurchen tribes in the northeast. While initially successful in expanding Goryeo territory, the campaigns strained resources and eventually led to a stalemate, with the Jurchen later forming the Jin dynasty.

King Sukjong ordered the construction of the Sungkyunkwan, the national Confucian academy in Gaegyeong. This institution became the highest educational establishment, training future officials in Confucian classics and statecraft.

King Sukjong faced a rebellion led by the powerful aristocrat Yi Ja-gyeom. The king successfully suppressed the revolt, executing Yi and his followers. This victory strengthened royal authority against the entrenched aristocratic factions.

Richard of Cornwall was elected King of Germany by a faction of prince-electors, opposing Alfonso X of Castile. This election was part of the Great Interregnum, with Richard receiving support from the English crown and the Papacy.

Richard of Cornwall was crowned King of Germany in Aachen by the Archbishop of Cologne. His coronation was contested by Alfonso X, and Richard's authority was largely confined to the Rhineland and parts of southern Germany.

Richard of Cornwall returned to England after spending several years in Germany. His departure weakened his influence in the Holy Roman Empire, and he never returned, leaving the German throne contested until the end of the Great Interregnum.

Richard of Cornwall died at Berkhamsted Castle in England. His death ended his claim to the German throne, and he was succeeded by Rudolf of Habsburg, who ended the Great Interregnum.