The New International Encyclopædia/Arnulf

AR′NULF (850–899). King of Germany and Roman Emperor. He was a natural son of the East Frankish king, Carloman, who was a great-grandson of Charles the Great. In 887 he led the revolt which forced Charles the Fat to abdicate, and was elected King of the East Franks—i.e. of Germany. In 891, in the battle of Louvain, on the Dyle, he exterminated the Northmen who were invading his kingdom. He invaded Italy in 894, was crowned Emperor in 896, and died in 899.