 The first of these altarpieces, a large "Madonna and Saints" signed "Opus Matthei Johannis De Senis" depicts the enthroned Madonna surrounded by Sts.Catherine, Matthew, Bartholomew, and Lucy.The composition and figure types are reminiscent of those found in Sano di Pietro's paintings while the draperies recall the work of Vecchietta and the St. Catherine type is derived from Domenico di Bartolo.