Donizo

Miniature of Matilda of Tuscany from the frontispiece of Donizo's Vita Mathildis (Codex Vat. Lat. 4922, fol. 7v.). Matilda is depicted seated. On her right, Donizo presents her with a copy his work, on her left is a man with a sword (possibly her man-at-arms).

Donizo (also Domnizo, Donizone) of Canossa, was an Italian monk and author in the late eleventh and early twelfth centuries. His work is an important source on Matilda of Tuscany and her dynasty, and also on Gregorian Reform and the Investiture Controversy more generally.