The Baptism of Christ is a painting by the Italian Renaissance master Piero della Francesca. Painted in egg tempera on two panels of poplar wood, the dating is controversial – some give it a very early date, perhaps 1439; others much later, around 1460. It is held by the National Gallery, London. Piero della Francesca, 1448 — painted at 33. Wood and tempera. 168 × 116 cm. In the National Gallery. Early Renaissance. Wiki link