Design for a vaulted chapel or aisle chapel with Sts Peter and Paul, the Virgin and Child, and four Evangelists in Pendentives

It has been suggested that if the attribution to Marco da Faenza is correct the drawing might be a preliminary design related to an unrealised proposal by Marco for a chapel in the Medici's Palazzo Vecchio in Florence. His penwork for figures is spontaneous and fluid. William Roscoe believed that the drawing was a design by the Florentine-born sculptor and architect, Jacopo Sansovino (1486-1570), who became the leading sculptor-architect in Venice in the mid sixteenth century. Roscoe's attribution was based on that of a previous owner, the eighteenth-century minor artist and collector of drawings, Jonathan Richardson Junior (1697-1771), who mistakenly referred to Jacopo as 'Giacomo' in his inscription, written on the drawing's mount. Although the drawing is not by Sansovino, another previous attribution is to Sansovino's pupil, the sculptor, garden and fountain designer, Niccolò Tribolo (1500-1550), who from 1536 worked for the Medici in Florence. Roscoe also thought he owned another Sansovino drawing (WAG 1995.272), now attributed to Domenico Fontana (1543-1607), which he believed was Sansovino's drawing for the temporary facade created in 1515 for the Florentine Cathedral during the triumphal entry into the city by the Medici pope, Leo X. In fact none of Jacopo Sansovino's architectural drawings are known to survive.