The Layer Quaternity are four marble sculpture figurines approximately 25 centimetres (10 in) in height located on the two columns of the Layer Monument, an early 17th-century polychrome mural monument (320 by 350 centimetres [130 in × 140 in]) which was installed in the Church of Saint John the Baptist, Maddermarket, Norwich to the memory of Christopher Layer (1531–1600).