Burgheard is an OE masculine name which combines the elements ‘burg’ (‘fortress’, ‘city’) and ‘heard’ (‘hard’, ‘hardy’, ‘brave’). The name is closely related to OG Burghard, Burcard and Burkhard (von Feilitzen 1937: 211-2; cf. Forssner 1916: 53-4). It was rare in Anglo-Saxon England: the PASE corpus records six occurrences of the name, of which five occur in the ninth century, and one in the mid eleventh (Burgheard 6, treated here).
Forssner 1916: Thorvald Forssner, Continental-Germanic Personal Names in England in Old and Middle English Times (Uppsala, 1916)
von Feilitzen 1937: Olof von Feilitzen, The Pre-Conquest Personal Names of Domesday Book, Nomina Germanica 3 (Uppsala: Almqvist and Wiksells, 1937)
Spellings in Domesday Book: Bucardus, Buchardus, Burcardus, Burchard, Burchardus, Burchart, Burckardus, Burghard, Burkart
Forms in modern scholarship:
von Feilitzen head forms: Burgheard
Phillimore edition: Burghard, Burcard
Alecto edition: Burgheard, Burcard