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Louis II is crowned as king of Italy at Rome by pope Sergius II.

Related Wikipedia articles
Louis II of Italy
Ruler of the Carolingian Empire from 844 to 875
Louis II, sometimes called the Younger, was the king of Italy and emperor of the Carolingian Empire from 844, co-ruling with his father Lothair I until 855, after which he ruled alone.Source: Wikipedia (CC BY-SA)
Italy
Country in Southern and Western Europe
Italy, officially the Italian Republic, is a country in Southern and Western Europe. It consists of a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land border, as well as nearly 800 islands, notably Sicily and Sardinia. Italy shares land…Source: Wikipedia (CC BY-SA)
Rome
Capital and largest city of Italy
Rome is the capital city and most populated comune (municipality) of Italy. It is also the administrative centre of the Lazio region and of the Metropolitan City of Rome. A special comune named Roma Capitale with 2,746,984 residents in 1,287.36 km2 (497.1 sq mi), Rome is the…Source: Wikipedia (CC BY-SA)
Pope Sergius II
Head of the Catholic Church from 844 to 847
Pope Sergius II was the bishop of Rome and ruler of the Papal States from January 844 to his death in 847. Sergius II's pontificate saw the Arab raid against Rome as well as the city's redevelopment.Source: Wikipedia (CC BY-SA)
June 15
Day of the year
June 15 is the 166th day of the year in the Gregorian calendar; 199 days remain until the end of the year.Source: Wikipedia (CC BY-SA)