The name Johannes Barontius appears in the signature of a polyptych representing the
Madonna and Child Enthroned with Saints (Galleria Nazionale delle Marche, Palazzo Ducale, Urbino). The work was originally placed in the church of San Francesco at
Macerata Feltria. Usually, Barontius (which is the Latinized form of Baronzio) is a surname. However, from a document of 1362, which records the painter's tomb in the church of San Giuliano in
Rimini it is clear that it was a
patronymic. The only documentary evidence on the artist to date is a deed dated 1343 that cites “Iohanne Baroncio pictore” as a witness. Based on the style of the painter, who may have been a disciple of
Giotto but at second hand, Baronzio must have started his career around 1320 or a little later. ==Work==