The Master of Flemalle
Holy Trinity

1433-35
Oil on panel, 34 x 24.5 cm
The Hermitage, St. Petersburg

This is the left wing of a diptych; the right wing has the Madonna and Child. A composition such as this, in which the Father on his throne holds the crucified Son, is called the Throne of Mercy.

More of the Trinity

Source: Web Gallery of Art