Guidoriccio da Fogliano

Guidoriccio da Fogliano (c. 1290–1352), a condottiero from Reggio di Lombardia and son of Niccolò da Fogliano, is the rider portrayed in Simone Martini's fresco in Siena's Palazzo Pubblico. Siena hired him in 1327 to attack Pisa and the Aldobrandeschi in the Maremma.

In 1328 he besieged Montemassi, defended by Castruccio Castracani, and took it after seven months. He went on to capture several Sienese border towns and defeat the Pisans at Giuncarico, until the Sienese expelled him in 1333. He went to Reggio and, with his brother Giberto, ousted Azzo Manfredi; two years later the Gonzaga took it and the brothers moved to the Veneto.

He was podestà of Padua and later of Verona, returned to Siena in 1351, and died there the next year and was buried in San Domenico.