Byzantine 13th Century, Madonna and Child on a Curved Throne, c. 1260/1280, tempera on linden panel, National Gallery of Art, Washington. https://dartabase.art/cite/nga/35

Angelos Akotantos, Icon of the Mother of God and Infant Christ (Virgin Eleousa), c. 1425–50, tempera and gold on wood, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/168322