In the spring of 1061, Burgheard son of Earl Æfgar of Mercia died returning from a journey to Rome, and his body was taken for burial in the basilica of the abbey of Saint-Rémi, Reims. Shortly afterward, his grieving parents gave the abbey an estate in Staffordshire, together with a beautifully illustrated gospel book, for the sake of their son's soul. The most recent study of this material established that, although its cover has been lost, the gospel book is almost certainly an extant manuscript, now Reims, Bibliothèque Municipale Carnegie, MS 9. This chapter examines two questions which illuminate this matter further: can Burgheard be identified in Domesday Book? and why did Burgheard go to Rome? In doing so, it addresses some of the methodological problems which have arisen in connection with recent work on Anglo-Saxon prosopography, in which Janet Nelson has played a leading role.