1) Altar cloth 2) Chancel cloth 3) Dossel 4) Hanging 5) Wall hanging 1) Dossel 
A Dossal (or dossel, dorsel, dosel), from French dos (back), is an ecclesiastical ornamented cloth suspended behind an altar. Altar screen is sometimes used as a synonym for the Dossal. ...
ornamental cloth hung behind and above an altar
dossel noun an ornamental hanging of rich fabric hung behind the altar of a church or at the sides of a chancel
an ornamental hanging placed at the back of an altar or at the sides of the chancel. · dosser (def. 2).