Giovan Battista Ludovisi

Giovanni/Giovan Battista Ludovisi (John Baptist Ludovisi) (1647 - 24 August 1699), 3rd Duke of Fiano and Zagarolo, was the Prince of Piombino, Marquis of Populonia, Prince of Venosa and Count of Conza, Lord di Scarlino, Populonia, Vignale, Abbadia del Fango, Suvereto, Buriano, Cerboli e Palmaiolan, and Lord prince of the Tuscan Archipelago including the islands of Elba, Montecristo, Pianosa, Gorgona, Capraia, and Isola del Giglio, serving from 25 December 1664 until his death in 1699.

[2][3] He had four sisters, Lavinia (wife of Girolamo Acquaviva, Duke of Atri), Olimpia, Ippolita and Nicolina.

[2][4][3] Giovan inherited his parents' domains the Ludovisi de Candia and the Pamphili, including the Principality of Piombino on 1 September 1665.

Giovan married in 1669 to Mary of the House of Montcada, daughter of William Ramon de Moncada, Marquis of Aytona.

From his marriage to Arduino, they produced one son, Niccolò II Maria Domenico Ludovisi born c.1698, and who died in 1699 at the age of one.