GUICCIARDINI, Louis, nephew of the preceding, was born at Florence, in the year 1523. He held different employments under Alexander of Medicis and his successor Cosimo II.; then he travelled, and remained a long time at Antwerp, where he obtained the favour of the Duke of Alba; but having reflected on this general's system of government, in a work which he published (Memoirs), he was thrown into prison, whence he was only liberated through the intercession of the Grand Duke of Tuscany. The remainder of his life presents no event worthy of notice, and seems to have been chiefly passed in the composition of
Guides his works. These are, 1. Memorie, &c., or Memoirs of what passed in Savoy from 1530 to 1565, Antwerp, 1565, in 4to; 2. Raccolta dei Detti e Fatti notabili, 1581, in 8vo; 3. Descrizione, &c., or Description of the Low Countries, Antwerp, 1567, in fol.; 4. Ore di Recreazione, Florence, 1600, in 12mo. Having lived several years in retirement, Louis Guicciardini died in 1589. (A.)