Arnulf of Carinthia

Arnulf of Carinthia (c. 850 – 8 December 899) was King of East Francia since 887, King of Italy since 894, and Emperor since 896. Initially, he was the Duke of Carinthia who overthrew his uncle Emperor Charles the Fat to become the Carolingian king of East Francia in late 887. He also ruled Lotharingia, and tried to impose suzerainty over West Francia, and rule over Burgundy and Italy. In 894, he invaded Italy and took Pavia, but soon returned to East Francia. Upon invading Italy again, he was crowned Emperor on 22 February 896 in Rome by Pope Formosus, but soon returned again to East Francia. He died on 8 December 899 at Ratisbon, in Bavaria. He was the last member of the Carolingian dynasty from the male line to rule in Italy as both King and Emperor, despite his rule being contested by his rivals Lambert of Italy and Berengar I of Italy.

Source: Wikipedia — https://en.wikipedia.org/wiki/Arnulf_of_Carinthia