Oil on canvas. Venetian school of the 17th century. The figures, portrayed in the foreground half-length, see Mary placed in the center with the baby Jesus in her arms; behind them on the left is Saint Joseph and below him the little John the Baptist, dressed in furs and with the traditional cross-shaped staff with the band bearing the inscription "Ecce Agnus Dei". The gazes of these four figures are turned to the left, where Saint Catherine of Siena appears, recognizable by the black habit of the Dominicans, and by her iconographic attributes, the crown of thorns, the stigmata and the lily. Jesus is holding out his hands towards her, to stipulate that mystical marriage that characterized the saint. Restored and relined, the painting shows widespread small losses of color. It is presented in a re-adapted 19th century frame.