In his short life, Valerio Castello managed to revolutionize painting in Genoa. With his rapid and fluid brushstrokes and the rhythmic and dancing poses of his figures, the painter became one of the first exponents of the Genoese Baroque. This canvas depicts the marriage between the Virgin Mary and Saint Joseph. Preserved in Palazzo Spinola since the mid-nineteenth century, the canvas is the probable transposition in small scale of a lost fresco made for the destroyed church of Santa Maria dello Zerbino.