This unusual chair is called prayer chair (French name since 17th century "prie-dieu"). First used by the higher clergy during religious services in the early European Middle Ages, the prie-dieu became popular in the 19th century owing to the Gothic Revival and to a pietistic passion for family prayers.
The design of this prayer stand varied in time, eventually settling as a small, ornamental wooden desk furnished with a thin, sloping shelf for books or hands, and a kneeler. Sometimes, instead of the sloping shelf, a padded arm rest was provided. This type is useful for devotions such as the Rosary, which do not require a book, or for private, non-liturgical prayer.
Prie-dieu may be provided in church weddings for the bride and groom to kneel on during the service
How much are the prayer chairs. With the red type velvet fabric and gold trim.