Charles III

(born 839, Bavaria? [Germany]—died Jan. 13, 888, Neidingen) Frankish king and emperor (881–87). The great-grandson of Charlemagne, he inherited the kingdoms of Swabia (876) and Italy (879). Charles was crowned emperor by the pope in 881. He gained control of the eastern and western Frankish kingdoms on the deaths of their rulers, and by 885 he had reunited all of Charlemagne's empire except Provence. Chronically ill, he failed to attack the Saracens and used tribute to buy off Viking invaders. His nephew Arnulf led an uprising against him in 887, and his fall marked the final disintegration of the empire of Charlemagne.

Source: Encyclopedia Britannica