The small size of this piece denotes its private character: it probably presided over a family chapel. The proliferation of portable altarpieces for private use carried over from the Gothic period, as a parallel typology to the much grander pieces that accompanied the public liturgy. The image in the centre depicts the Baptism of Christ, while the panel on the left shows Saint Michael weighing a soul, and the one on the right Saint Francis of Assisi receiving the stigmata. When the panels are closed, they reveal an Annunciation and the coat of arms of the sponsor.