question: Carloman abdicated Italy to the great-grandson of who?
answer: Charlemagne
context: Title: Charles the Fat
  Passage: Charles III (13 June 839 – 13 January 888), also known as Charles the Fat, was the Carolingian Emperor from 881 to 888.  The youngest son of Louis the German and Hemma, Charles was a great-grandson of Charlemagne.  He was the second-last emperor of the Carolingian dynasty and the last to rule, briefly, over a re-united Frankish empire.
  Title: Louis the Younger
  Passage: Louis the Younger (830/835 – 20 January 882), sometimes Louis III, was the second eldest of the three sons of Louis II the German and Emma.  He succeeded his father as the King of Saxony on 28 August 876 and his elder brother Carloman as King of Bavaria from 880 to 882.  He died in 882 and was succeeded in all his territories, which encompassed most of East Francia, by his younger brother, Charles the Fat, already King of Italy and Emperor.
  Title: Frankish Papacy
  Passage: From 756 to 857, the papacy shifted from the orbit of the Byzantine Empire to that of the kings of the Franks.  Pepin the Short (ruled 751–768), Charlemagne (r. 768–814) (co-ruler with his brother Carloman I until 771), and Louis the Pious (r. 814-840) had considerable influence in the selection and administration of popes.  The "Donation of Pepin" (756) ratified a new period of papal rule in central Italy, which became known as the Papal States.
  Title: Carloman of Bavaria
  Passage: Carloman (German: "Karlmann" , Latin: "Karlomannus" ; c. 830 – 22 March 880), was a Frankish king of the Carolingian dynasty.  He was the eldest son of Louis the German, king of East Francia, and Hemma, daughter of a Bavarian count.  His father appointed him margrave of Pannonia in 856, and upon his father's death in 876 he became King of Bavaria.  He was appointed by King Louis II of Italy as his successor, but the Kingdom of Italy was taken by his uncle Charles the Bald in 875.  Carloman only conquered it in 877.  In 879 he was incapacitated, perhaps by a stroke, and abdicated Bavaria to Louis the Younger and Italy to Charles the Fat.
  Title: Pepin the Hunchback
  Passage: Pepin, or Pippin, the Hunchback (French: Pépin le Bossu, German: Pippin der Buckelige; c. 769 – 811) was the eldest son of Charlemagne.  Born to the Frankish noblewoman Himiltrude, Pepin probably developed kyphosis after birth, leading early medieval historians to give him the epithet "hunchback".  He lived with his father's court even after Charlemagne dismissed his mother and took another wife, Hildegard.  Around 781, Pepin's half brother Carloman was rechristened as "Pepin of Italy"—a step that may have signaled Charlemagne's decision to disinherit the elder Pepin, for a variety of possible reasons.  In 792, Pepin the Hunchback revolted against his father with a group of leading Frankish nobles, but the plot was discovered and put down before the conspiracy could put it into action.  Charlemagne commuted Pepin's death sentence, having him tonsured and exiled to the monastery of Prüm instead.  Since his death in 811, Pepin has been the subject of numerous works of historical fiction.
  Title: Baron Vivian
  Passage: Baron Vivian, of Glynn and of Truro in the County of Cornwall, is a title in the Peerage of the United Kingdom and held by a branch of the Vivian family.  It was created in 1841 for the soldier Sir Hussey Vivian, 1st Baronet.  He had already been created a baronet, of Truro in the County of Cornwall, in 1828.  His eldest legitimate son, the second Baron, represented Bodmin in the House of Commons and served as Lord Lieutenant of Cornwall.  His son, the third Baron, served as British Ambassador to Italy from 1891 to 1893.  The latter's great-grandson, the sixth Baron, was a soldier and a Conservative member of the House of Lords.  Lord Vivian was one of the ninety elected hereditary peers that were allowed to remain in the House of Lords after the passing of the House of Lords Act 1999.  As of 2014 the titles are held by his only son, the seventh Baron, who succeeded in 2004.
citations: Carloman of Bavaria Charles the Fat