Complex sentence: About the close of the 5th century this territory was conquered by Clovis, king of the Salian Franks, was afterwards incorporated with the kingdom of Austrasia, and at a later period came under the rule of Charlemagne.
Split into simpler sentences: About the close of the 5th century this territory was conquered by Clovis, king of the Salian Franks. It was incorporated with the kingdom of Austrasia, and later came under the rule of Charlemagne.