Lamb of God Lamb of God sung or recited during the fraction of the Host. It is said to have been introduced into the Mass by Pope Sergius I (687–701). "Agnus Dei" has been set to music by many composers, usually as part of a Mass setting. In Christian iconography, an Agnus Dei is a visual representation of Jesus as a lamb, since the Middle Ages, usually holding a standard or banner with a cross. This normally rests on the lamb's shoulder and is held in its right foreleg. Often the cross will have a white banner suspended from it charged with a
Crucifix of Ferdinand and Sancha cross. At the base of the cross, below the crucified figure, is a figure of Adam, and below that the inscription: FREDINANDUSREX<br>SANCIAREGINA indicating the commissioners of the work, King Ferdinand and Queen Sancha. The reverse of the cross bears plant figures, in the centre the Agnus Dei, and at the four extremities of the arms the symbols of the Four Evangelists. Crucifix of Ferdinand and Sancha The crucifix of Ferdinand and Sancha () is an ivory carving from "circa" 1063, today in the National Archaeological Museum of Spain. It was part of an offering by King Ferdinand I of León