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 which was installed in the Church of Saint John the Baptist, Maddermarket, Norwich to the memory of Christopher Layer (1531–1600).

The Layer monument is an early 17th-century polychrome marble mural monument erected in the memory of the lawyer Christopher Layer (1531–1600), and located in the Church of Saint John the Baptist, Norwich.