Città del Vaticano, BAV, Reg. lat. 423
From Clavis Canonum
Reg. lat. 423 (saec. IX) contains:
- fol. 1v-25v Collectio Weissenburgensis (see Kéry, Collections pp. 68 citing Martínez Díez)
- fol. 26r-61v Cresconius
- fol. 62-64v two unidentified canons and three letters (Leo I, JK 411; Jerome to Lucianus Baeticus; Mansuetus of Milan to Constaninus IV)
The last item breaks off in mid-sentence due to a loss of the last four leaves of the quire. See Zechiel-Eckes, Cresconius pp. 339-340 for a more detailed description.
The manuscript is digitized at https://digi.vatlib.it/view/MSS_Reg.lat.423