DATE: Secondary use: Saec. xv. LITURGICAL USE: Primary use: Probably diocese of Uppsala. Secondary use: Diocese of Åbo. ORIGIN: Added according to liturgical use. OTHER NOTES: Previously cited as: 'Kalendarium Upsalense aus dem Beginne des 14. Jahrh. (älter als Kal. Ups. 1344)' (Malin 1925); 'Kalendariefragment s.n. Kalendarium Upsalense fragm, ad usum Aboensem postea aptatum' (Helander 1984, 2001)