Gugliarello Acciaiuoli

Gugliarello Acciaiuoli, known as Acciaiolo, was the earliest known ancestor of the Acciaioli of Florence. A Guelph born at Brescia, he fled political feuds and settled in Florence around 1160, where he enrolled in the money-changers' guild.

He probably traded in steel, which gave him the nickname Acciaiolo, and his family adopted the Brescian coat of arms. By his wife Ghisella he left sons Riccomanno and Leone, a doctor of law.