Solothurn, Zentralbibliothek, Cod. S III 13 : Graduale de tempore

The illuminator Claudio Rofferio (+ ca. 1567) was an Augustinian canon. Originally from the Aosta Valley, he was active in various regions; from 1539 until about 1544 he created a series of illuminated manuscripts for the Cistercian Abbey of Altenberg near Cologne. From about 1550 until after 1560, he worked for various monasteries and religious institutions in Switzerland, such as Beromünster, Mu…