Einhard was from the eastern German-speaking part of the Frankish Kingdom. Born into a family of landowners of some importance, his parents sent him to be educated by the monks of Fulda - one of the most impressive centres of learning in the Frank lands. Perhaps due to his small stature, which restricted his riding and sword-fighting ability, Einhard concentrated his energies towards scholarship and especially to the mastering of Latin. He was accepted into the hugely wealthy court of Charlemagne around 791 or 792. Charlemagne actively sought to amass scholarly men around him and established a royal school led by the Northumbrian scholar Alcuin. Einhard evidently was a talented builder and construction manager, because Charlemagne put him in charge of the completion of several palace complexes including Aachen and Ingelheim. Despite the fact that Einhard was on intimate terms with Charlemagne, he never achieved office in his reign. In 814, on Charlemagne's death his son Louis the Pious made Einhard his private secretary. Einhard retired from court during the time of the disputes between Louis and his sons in the spring of 830.
He died at Seligenstadt in 840.