Hildegard (c. 754 – 30 April 783), was a Frankish queen consort who was the second wife of Charlemagne and mother of Louis the Pious. Little is known about her life because like all other women related to Charlemagne, she became notable only from a political background with records on her parentage, wedding, death and role as a mother. Origins She was the daughter of the Germanic Count Gerold of Kraichgau (founder of the Udalriching family) and his wife Emma, in turn daughter of Duke Nebe (Hnabi) of Alemannia and Hereswintha vom Bodensee (of Lake Constance). Hildegard's father had extensive possessions in the dominion of Charlemagne's younger brother Carloman, so this union was of significant importance for Charlemagne, because he could strengthen its position in the east of the Rhine and also could bind the Alemannian nobility to his side. Life It is unknown if Charlemagne planned his marriage before the sudden death of Carloman or was just a part of the purposeful incorporation of his younger brother's Kingdom, in detriment of the claims of his nephews. In any event, the wedding between Charlemagne and Hildegard took place at Aix-la-Chapelle certainly before 30 April 771, after the repudiation of the Lombardian princess Desiderata, Charlemagne's previous wife. It is generally accepted that she was either 12 or 13 upon her marriage to Charlemagne., though her nominal date of birth would place her at 17. Girls could be married at any time after puberty, and in Roman law, which the Church upheld, the age of 12 was well established as being adequate. An intense physical relationship between the spouses was demonstrated by the fact that, during her 12 years of marriage, Hildegard had 8 pregnancies (including one set of twins). Quite remarkably, the chronicles never mention either miscarriages or stillbirths, indicating that she was of sturdy health despite her young age at the time of the wedding. Some children she had died, though as babies soon after birth. Hildegard accompanied Charlemagne on many of his military campaigns. She gave birth to her second child and first daughter, Adelaide, during the siege of Pavia, capital of the Kingdom of the Lombards (September 773/June 774), but the child died during the return journey to France. In 778, Hildegard accompanied her husband as far as Aquitaine, where she gave birth to twin boys Louis and Lothair. In 780/781, she traveled with Charlemagne and four of