The earliest attempts at a reformation of the Roman ritual were naturally concerned with the mass.
Of the first type the earliest examples are the constitutions drawn up by Bugenhagen for the city of Brunswick and the Principality of Brunswick-Wolfenbüttel, 1528; Hamburg, 1529; Lübeck, 1531; Pomerania, 1535; Denmark, 1537; Sleswick-Holstein, 1542; and Hildesheim, 1544.