Christian I of Denmark vs Duwa

Following the death of King Christopher III, the Danish Council elected Christian of Oldenburg as king. This established the Oldenburg dynasty, which would rule Denmark for over four centuries.

Christian I was crowned King of Norway in Trondheim, formalizing the union between Denmark and Norway. This union lasted until 1814, making Norway a Danish dominion for centuries.

Christian I was elected King of Sweden, briefly restoring the Kalmar Union. His rule in Sweden was contested, leading to rebellion and his eventual deposition in 1464.

To secure a dowry for his daughter Margaret's marriage to James III of Scotland, Christian I pledged the Orkney and Shetland islands. The pledge was never redeemed, and the islands became permanently part of Scotland.

Christian I issued a charter establishing the University of Copenhagen, the first university in Denmark. Modeled on the University of Cologne, it became a center of learning and the oldest university in the country.

Duwa became Khan of the Chagatai Khanate in 1282, after the death of his predecessor Baraq. He ruled for 25 years, leading the khanate through a period of conflict with the Yuan dynasty and the Ilkhanate.

Duwa formed a military alliance with Kaidu, the de facto ruler of the Mongol heartland, against the Yuan dynasty of Kublai Khan. Together, they launched campaigns into Yuan-controlled territories, including the Tarim Basin and Mongolia, challenging Yuan authority.

Duwa's forces were defeated by the Yuan army at the Battle of Khara-Khoto in 1298. The loss weakened his position and forced him to retreat, leading to a temporary cessation of hostilities with the Yuan.

Duwa negotiated a peace treaty with the Yuan dynasty in 1304, ending decades of conflict. The treaty recognized Yuan suzerainty over the Chagatai Khanate, but allowed Duwa to maintain internal autonomy, stabilizing the region.