After studies in Bologna, where his father lived in exile after a Ghibelline coup in Buggiano, the family returned to Buggiano, which had become more securely part of the Republic of Florence.
As many Florentine banks were international companies with branches across Europe, the florin quickly became the dominant trade coin of Western Europe for large scale transactions, replacing silver bars in multiples of the mark (a weight unit equal to eight ounces).
In 1408 the Republic of Florence wished to have it made an episcopal see, being then a suffragan of the archdiocese of Lucca.
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After fighting in the war between the Republic of Florence and Filippo Maria Visconti, Duke of Milan, the latter give him the title of count and several fiefs.
It was painted after he had been taken prisoner in the Battle of Montaperti in 1260, when the Republic of Siena defeated the Republic of Florence.
During the wars between Guelphs and Ghibellines, he sided initially for the former, fighting for Florence against Arezzo at the battle of Campaldino.