The Book of Hours is a medieval prayer book that was popular in Europe from the 13th to the 16th centuries. It typically contained a variety of prayers, psalms, and other devotional texts, as well as illustrations and decorations. One of the most popular features of the Book of Hours was the inclusion of soul cards, which were small cards that contained prayers for the dead.
Soul cards were often commissioned by wealthy individuals who wanted to ensure that their souls would be prayed for after their death. The cards were typically made of parchment or vellum, and they were often decorated with elaborate illustrations. The prayers on the cards varied, but they typically included petitions for the soul’s forgiveness, protection, and eternal rest.