MS 191 contains two texts by the fifteenth-century Italian, Aeneas Silvius Piccolomini (Pope Pius II from 1458-1464). The volume is divided into two parts, the first containing letters by Piccolimini, and the second, the text De miseria curialium. These will be described separately, under 'MS 191/ff. 1-97' and 'MS 191/ff. 99-115'.
A fine, uniform minuscule, written on fine vellum, with wide margins. The volume has suffered much damage and loss though, so many leaves are stained and worn to illegibility.
The initials in Part I (ff. 1r-97v) are of burnished gold on grounds of lake, blue or green with gold scroll work. All have suffered much from damp. The initial at the beginning of Part II (ff. 99r-115v), on f.99r, is gold with a vine design prolonged in the margin, the colours being green, blue, and lake, but it also has been blurred by damp.