The Acciaioli, Acciaiuoli, Accioly, Acciajuoli or Acioli was an important family of Florence. Family name is also written Acciaioli, Acciainoli, or Accioly, Accioli, Acioli and Acyoly in Portugal and Brazil, where there are branches of it. Descent can be traced in an unbroken line from one Gugliarello Acciaioli in the 12th century; family legend says that Gugliarello (a name possibly derived from It. guglia, needle) migrated from Brescia to Florence in 1160 because they were Guelphs and fled Barbarossa's invasion of Northern Italy. The Acciaioli founded a powerful bank in the 13th century (Compagna di Ser Leone degli Acciaioli e de' suoi consorti) which had branches from Greece to Western Europe until the bank collapsed in 1345. Bishop Angiolo Acciaioli briefly ruled Florence in the mid-14