The Virgin's marriage to Saint Joseph is not described in the Gospels but appears in the New Testament Apocrypha & the 13th-century book, the ' Golden Legend'. These sources tell how Joseph was chosen to marry the Virgin because of a miraculous sign
- the flowering of his rod. Here he holds his rod surmounted by a dove (the symbol of the Holy Ghost) while placing a ring on the Virgin's h&. The Virgin's mother, Saint Anne, stands on the right & on the left two disappointed suitors break their rods. This painting on panel, & one in the Vatican Museum of the ' Birth of the Virgin', are almost certainly from the same predella, (the lower section of an altarpiece). They may belong to an altarpiece of the ' Virgin & Child with Saints Andrew & Onophrius' in the Pinacoteca, Siena.