The manuscript Kiel, University Library S.H. 8 A. 8o, which contains the earliest copy of the so-called Roskilde Chronicle as well as the complete monastic Offices and Masses of the Danish St Knud Lavard (1131), was published in facsimile, together with an edition of the liturgical material, by John Bergsagel in 2010. Comprising, respectively, the first attempt at a history of Denmark and the earliest music that can reasonably be supposed to have been written in Denmark, the publication provided the occasion for an international symposium, held at the Royal Library in Copenhagen in 2012, at which the historical, theological, liturgical and musicological aspects of its contents were discussed in contributions from thirteen invited scholars, which are collected in this volume.