Vita Karoli Magni (Life of Charlemagne) is a biography of Charlemagne, King of the Franks and Emperor of the Romans, written by Einhard. The Life of Charlemagne is a 33 chapter account starting with the full genealogy of the Merovingian family, going through the rise of the Carolingian dynasty, and then detailing the exploits and temperament of King Charles. It has long been seen as one of the key sources for the reign of Charlemagne and provides insight into the court of King Charles and the events that surrounded him. Source: Wikipedia (en)