"Isotta degli Atti (late 1432 or 1433 – 9 July 1474)
was an Italian Renaissance woman and regent. She was the mistress and later wife of the condottiero and lord of Rimini, Sigismondo Pandolfo Malatesta. She governed Rimini as regent during the excommunication of Malatesta in 1437, as well as during the minority of their son in 1468–69." - (en.wikipedia.org 11.08.2021)
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