The single point of chronological anchor of the Master's activity is related to recognition on the back of Polyptych Montespecchio, indicating that it was made on the occasion of the inauguration in 1307 of the new church of the Hermitage of Montespeccio. All other dating criteria are based solely on stylistic studies, including the presence of influences from Duccio and Giotto. Specifically called the Master by Duccio in 1302, served as a model for the Master of Città di Castello and some works as denoting the influence of young Simone Martini, it is assumed for them a later dating to 1315-1320. Most historians are therefore place his time between the last decade of the thirteenth century and the second decade of the fourteenth century, except Freuler who dates his early works around 1285 and the last around 1330. The Master's training took place in the very complex time of the Sienese cultural background between 1270-1290, during years of extraordinary upheaval of Western pictorial language crossroads of Byzantine Empire pictorial stereotype centuries already fundamentally rethought by the innovations of the great masters of the moment felt that it was a single artist. Bagnoli however revealed many differences in their work. It is now thought that this could be of two brothers, or two artists working in the same shop.
Style
For Chelazzi Dini, the Master of Città di Castello's work is that of an artist with "a strong personality and remarkable color sensitivity, and therefore easily identifiable amidst the abundant production inspired by Duccio". Freuler in turn refers to "emotional eccentricity of his figures but also personal colors, expressive". This is indeed a full lyric, dramatic, driven by mankind expressions, lively narrative, and made so terribly effective by technical mastery, for innovations Duccio, Giotto are treated here in an exemplary manner and natural. Always listening to the latest news, the second decade of the thirteenth century saw a new direction for his work with the influence of the first creations of Simone Martini, and the spatial and chromatic research reveal increasingly subtle similarities. 1307, exhibited in the Pinacoteca Nazionale
The Montespecchio Polyptych
The altarpiece known as the Montespecchio Polyptych was executed for the consecration of the new church Santa Maria di Monte Eremo at Montespecchio in the present-day commune of Murlo, near Siena, an event which took place on 16 April 1307, as confirmed by the presence of St. Anthony dedicatee of the place, the inclusion of the writing partially legible on the back panel of the Madonna and Child. Dismembered, the different panels have subsequently undergone numerous changes. The panel of the Madonna and Child was drastically cut down to a rectangular format. Long preserved in the church of Santa Cecilia Crevole, and long attributed to Pietro Lorenzetti, it was then attributed to the Master of Città di Castello by Mason in 1908, before he arrived at the Museo dell'Opera del Duomo in Siena in 1920. The panels depicting St. Augustine, St. Paul, St. Peter, St. Anthony Abbot, were meanwhile long attributed to Duccio and listed as such by the gallery in Siena in 1894, before being reassigned by Nicola 1912 to the Master of Città di Castello. Finally, it was only after a controversy among art historians that lasted throughout the twentieth century that the various panels were physically broughout together again in 2003 on the same support, the whole being now preserved in the Pinacoteca Nazionale of Siena. For installation and a living relationship with the child, the Madonna of the Montespecchio Polyptych is inspired by those of Duccio appearing on the Polyptych of Perugia and the Polyptych No. 28 of the Pinacoteca of Siena. It therefore shares many similarities with other panels themselves also inspired these works by Duccio, like the Montalcino Triptych Master of Maesta Cini or Master Gondi. The work also surprised by its chromatic daring, perhaps influenced by those of its predecessors Siena, combining red and white lacquer, purple plum and azure blue, or green and ocher. The Montespecchio Polyptych is also famous because of its partial inscription " E ECIT" on the sword of St. Paul. The word that preceded this text probably meant the author, which makes it even more frustrating being erased. It was also assumed that he had never been written. Still, the "me fecit" the Montespecchio altarpiece of stands as the oldest inscription of its kind in Sienese painting. It will be followed by that of Segna di Buonaventura "SEGNA FECIT ME" on the sword of St. Paul in the polyptych No. 40 of the Siena Pinacoteca Nazionale; and that of Pietro Lorenzetti in 1320 on the sword of St. Reparata in the Tarlati Polyptych : "PETRUS FECIT ME" 25. We can also note the adoption for the first time by our anonymous master of an innovation of Duccio's: the "maphorion" painted in white. Previously he had kept the red "maphorion" of the Byzantine tradition.