Manuscript Florence, Biblioteca Nazionale Centrale, Magliabechiana XIX, 164a 167 (FlorBN Magl. 164a 7) has been the subject of considerable scholarly attention. The prevailing assumption had been that it was a Florentine source of the early sixteenth century. More recently, it has been argued that its provenance is not as easily determined as it first appears, and that there are Roman connections suggested by one of its codicological features. This monograph provides as full a bibliographical and codicological report on FlorBN Magl. 164a 7 as is currently possible. Such evidence suggests that...