Editing Christian I of Denmark (section)

===King of Denmark===
[[File:C. W. Eckersberg Hertug Adolf, som afslaar Tilbudet om den danske Krone.jpg|thumb|''Duke Adolph declining the offer of the Danish throne and recommending his nephew, Count Christian of Oldenburg.'' [[History painting]] by [[Christoffer Wilhelm Eckersberg]], 1819.]]
[[File:Den ældste håndfæstning (9288945185).jpg|thumb|The ascension promissory of Christian I]]
[[File:King Christian I of Denmark and Queen Dorothea.jpg|thumb|King Christian I and [[Dorothea of Brandenburg|Queen Dorothea]]]]

In January 1448, King [[Christopher of Bavaria|Christopher of Denmark, Sweden and Norway]] died suddenly and without natural heirs. His death resulted in the break-up of the union of the three kingdoms, as Denmark and Sweden went their separate ways and Norway's affiliation was unclear. The vacant Danish throne was first offered by the [[Council of the Realm (Denmark)|Council of the Realm]] to Duke Adolphus of Schleswig, being the most prominent feudal lord of Danish dominions. The duke declined and recommended his nephew, Count Christian of Oldenburg. Before being elected, Christian had to promise to obey to the [[Constitutio Valdemariana]], a provision in the [[ascension promissory]] of King [[Valdemar III of Denmark]], that promised that in the future, the same person could never be both ruler of the [[Duchy of Schleswig]] and Denmark simultaneously. The council also demanded that Christian should marry [[dowager]] queen [[Dorothea of Brandenburg]] (ca 1430–1495), widow of his predecessor King Christopher III. On 1 September 1448, after signing his ascension promissory, count Christian was elected to the Danish throne as king Christian I at the assembly in [[Viborg, Denmark|Viborg]]. His coronation was held on 28 October 1449, in the [[Church of Our Lady (Copenhagen)|Church of Our Lady]] in [[Copenhagen]], at which occasion his marriage with dowager queen Dorothea was also celebrated.<ref>{{cite web|url = https://runeberg.org/dbl/4/0303.html|title=Dorothea, 1430-95, Dronning|publisher =Dansk biografisk Lexikon     |access-date=1 June 2018}}</ref>