By marrying a Frankish nobleman 's daughter , Liudolf followed suggestions set forth by Charlemagne about ensuring the integrity of the Carolingian Empire in the aftermath of the Saxon Wars through marriage .
ADP VERB DET ADJ NOUN PART NOUN , PROPN VERB NOUN VERB ADP ADP PROPN ADP VERB DET NOUN ADP DET PROPN PROPN ADP DET NOUN ADP DET PROPN PROPN ADP NOUN .