Or Einhard, a Frankish historian, born in Mainyan, in East Franconia; a collection of his letters and his Annals of the Franks, as well as his famous "Life of Charlemagne," are extant; was a favourite of the latter, who appointed him superintendent of public buildings, and took him with him on all his expeditions; after the death of Charlemagne he continued at the Court as tutor to the Emperor Louis's son; died in retirement (770-840).