Lorenzo Monaco, Annunciation Triptych

 Lorenzo Monaco’s Annunciation with St Catherine, St Anthony Abbot, St Proculus and St Francis is painted in the International Gothic style and was commissioned for the Church of San Procolo in Florence, where it was seen in the mid-sixteenth century by Giorgio Vasari, who attributed it to Giotto. The triptych was recognised as a work by Lorenzo Monaco by Giovanni Battista Cavalcaselle in 1864. The work has been variously dated from 1408 to 1418 and once had different cusps (possibly with the heads of prophets) and a now lost predella.