Horae beatae Mariae virginis

16 e
1 f
g Sother and Gaius Popes and martyrs
9 A George, Martyr
b
16 c Mark, Evangelist
6 d
e
13 f Vitalis, Martyr
2 g Peter This likely refers to Peter of Verona, a Dominican martyr, of the Order of Preachers
A

May has 31 days.
Moon 30. Night 8 hours.