Da Vinci's masterpieces: A closer look
St. John the Baptist
This portrait of John the Baptist, who recognized Jesus as the Messiah in the New Testament and spread the word of his arrival, also hangs in the Louvre. His cheerful gaze is an expression of his knowledge. Between 1513 and 1515, Leonardo was in the service of the Vatican. Presumably, Pope Leo X commissioned the painting, which is believed to be Leonardo's last.