
Documentary evidence confirming that this portrait belongs to the brush of Piero della Francesca, no, but his authorship in this case is almost certainly for art historians. Sijismondo Malatesta was the ruler of the city of Rimini, and Piero della Francesca visited him at the court many times, invariably taking advantage of his patronage.
Portrait de Sigismondo Malates – Piero della Francesca
Retrato de Sigismondo Malates – Piero della Francesca
View of the ideal city by Piero della Francesca
Portrait of the Duke of Federigo Montefeltro and the Duchess of Battista Sforza by Piero della Francesca
Resurrection by Piero della Francesca
Politich of Perugia by Piero della Francesca
St. Jerome with Donator by Piero della Francesca
The Death of Adam by Piero della Francesca