Complex sentence: Eventually, after Kocel's death in 876, it was again made part of the Carinthia March of the East Frankish Empire, and soon afterwards, in 901 it was conquered by the Magyars, who terminated the remaining elements of Slavic self-organization.
Split into simpler sentences: Eventually, after Kocel's death in 876, it was again made part of the Carinthia March of the East Frankish Empire. Soon afterwards, in 901 it was conquered by the Magyars, who terminated the remaining elements of Slavic self-organization.