The offices for Saints Henry and Kunigunde, patrons of the diocese ofBamberg, are transmitted in both monastic and secular forms that manifestseveral stages of development. In the century after the canonizations ofHenry and Kunigunde (1146 and 1200, respectively) their Offices seem to havebeen celebrated with a preponderance of chants from the common of saints. Duringthe thirteenth century, however, novae historiae, newly composed officeswith rhymed or partially rhymed texts and chants in modal order, replacedthe older offices. This process parallels in some respects the phenomenonthat James McKinnon called ‘properization’. Also examined are questions ofhow and why newly composed historiae could supplant the traditional forms ofthese Offices.