This week brought one hundred and twelve manuscripts, the most added in a single week since the first half of 2022, when the Reg.lat work was in full swing. The distribution by fond was somewhat abnormal this week, with the largest fond, Barb.gr only contributing twenty five, which is less than 1/4 of the overall total. Close to that in size were Ott.lat and Vat.lat, both adding twenty three. Adding twelve was Vat.ar, followed by Barb.lat with eleven, P.I.O. with five and Ross with four. Each of those smaller collections is interesting, as five from P.I.O represents 12% of the entire collection and Ross is approaching 90% complete in digitizations, though some still remain as digitized microfilm. Finally come the smallest collections, three from Chigiani, two from Capp.sist, and one each from Borg.ar, Sire, Vat.et, and Vat.pers.

To the right is f.1r of Barb.lat.855, a copy of the Acts of the Councils of Basel and Constance. The bulk of the manuscript is in a nice, though rather conventional Humanist semi-cursive, dark brown ink on white parchment with occasional purple titles. The first four folios, however, are not the Acts, but a dedication letter from the scribe, Johannes Vallinus, to Cardinal Johannes Balue, and are written in gold and silver ink on purple parchment. Although the manuscript has 478 folios, a colophon on f.478v says that the scribe write the entire thing in 40 days. As an added bonus the Balue's arms, with the Cardinal's hat, appear at the bottom of the page

The bottom border is from f.3v of Capp.Sist.163, a copy of Carpentras' polyphonic setting of the book of Lamentations written around 1524-1526. The manuscript was written under direct orders of the composer for presentation to Pope Clement VII, whose arms appear on f.2r. Although Carpentras retired as maestro di cappella at the death of Leo X in 1521, he returned to Rome in 1524. There he heard "his" music being performed, and was so saddened by the corruption of his work that he commissioned this manuscript as a corrected copy for the Sistine Choir.