DATE: Saec. xii med. (Niskanen 2010). LITURGICAL USE: Diocese of Maastricht suggested (Haapanen 1924). ORIGIN: Probably ecclesiastical province of Cologne (Haapanen 1924); probably Germany or German influence (Niskanen 2010). OTHER NOTES: See also F.m. III.13. Previously cited as: B IV (Haapanen 1924).