section_path: King of the Franks and the Lombards/Building the dynasty
section_name: Building the dynasty
paragraph_text: Building the dynasty
  
  Charlemagne returned to Francia to greet his newborn twin sons, Louis and Lothair, who were born while he was in Spain; Lothair died in infancy. Again, Saxons had seized on the king's absence to raid. Charlemagne sent an army to Saxony in 779 while he held assemblies, legislated, and addressed a famine in Francia. Hildegard gave birth to another daughter, Bertha. Charlemagne returned to Saxony in 780, holding assemblies at which he received hostages from Saxon nobles and oversaw their baptism.
  
  He and Hildegard traveled with their four younger children to Rome in the spring of 781, leaving Pepin and Charles at Worms, to make a journey first requested by Adrian in 775. Adrian baptised Carloman and renamed him Pepin, a name he shared with his half-brother. Louis and the newly-renamed Pepin were then anointed and crowned. Pepin was appointed king of the Lombards, and Louis king of Aquitaine. This act was not nominal, since the young kings were sent to live in their kingdoms under the care of regents and advisers. A delegation from the Byzantine Empire, the remnant of the Roman Empire in the East, met Charlemagne during his stay in Rome; Charlemagne agreed to betroth his daughter Rotrude to Empress Irene 's son, Emperor Constantine VI.
  
  Hildegard gave birth to her eighth child, Gisela, during this trip to Italy. After the royal family's return to Francia, she had her final pregnancy and died from its complications on 30 April 783. The child, named after her, died shortly thereafter. Charlemagne commissioned epitaphs for his wife and daughter, and arranged for a Mass to be said daily at Hildegard's tomb. Charlemagne's mother Bertrada died shortly after Hildegard, on 12 July 783. Charlemagne was remarried to Fastrada, daughter of the East Frankish count Radolf, by the end of the year.