Saint Catherine of Siena Exchanging Her Heart with Christ, Tempera and gold on wood, Overall, with added strips, 11 3/4 x 9 1/2 in. (29. 8 x 24. 1 cm) ; painted surface 11 3/8 x 8 7/8 in. (28. 9 x 22. 5 cm), Paintings, Giovanni di Paolo (Giovanni di Paolo di Grazia) (Italian, Siena 1398?1482 Siena), These three panels belong to a series from the base (predella) of a large altarpiece and constituted the first extensive narrative cycle of Catherine of Siena, a Sienese mystic as well as minister to the poor and plague-stricken