Book of Hours (London, Lambeth Palace Library, MS 474)
The book belonged to Richard III and to the Lady Margaret. But it is (except the added prayer) earlier than Richard's time. The collect for S. Ninian at the beginning is not in the main hand of the book, but is not much later. It should indicate an owner of Scotch connections.
See Lambeth Palance Library for a full list of prayers
Devotions to the cross and passion of Jesus Christ
Latin prayer (inc. O beata et intemerata et in eternum benedicta)
Latin prayer (inc. Obsecro te domina sancta maria mater dei)
Vision in which the Virgin Mary reveals to John the Evangelist her five sorrows
Consists principally of large and small decorative initials, and borders. These are in the characteristic English style of the early part of the fifteenth century: fine gold, blue, pink, orange, green are the leading colours.
Online catalogue entry - Full list of prayers