Keywords: BLRoyal2BXVFol126rInitialMassGregory.jpg Folio 126 recto from a Book of Hours British Library Royal 2 B XV Historiated initial showing the Mass of St Gregory PD-Art Book of Hours c 1501-1510 - BL Royal MS 2 B XV Mass of Saint Gregory in miniatures Historiated initials from illuminated manuscripts Artworks missing infobox template |