1669-1708 AD., Mantova in Italy, Ferdinando Carlo Gonzaga-Nevers, Mantova mint, Soldo, CNI 72/79.

Mantova / Mantua / Mantoue in Italy, Ferdinando Carlo Gonzaga-Nevers, duca X - Ferdinando Carlo Gonzaga, 10th Duke of Mantua and Montferrat (1669-1708), Mantova mint, no date (1669-1708 AD.),
Soldoo (17-18 mm / 1,37 g), copper, for Lombardy,
Obv.: FER. / CAR: / D: G [D •] , three lines legend in a wreath-circle - nel campo: su tre righe entro corona di alloro.
Rev.: MAN / {ET}. M. F. / C V G , three lines legend in a wreath-circle - nel campo: su tre righe entro corona di alloro.
Bignotti 24 ; CNI 72/79 .
thanks to Sergio for the ID

Ferdinando Carlo Gonzaga (31 August 1652 – 5 July 1708) was the only child of Duke Charles II of Mantua and Montferrat, and the last ruler of the Duchy of Mantua of the House of Gonzaga.

Born in Revere, Ferdinand Charles first married Anna Isabella Gonzaga (d. August 11, 1703), daughter of Ferrante III Gonzaga, sovereign Duke of Guastalla. This marriage was arranged by the assistance of his aunt, empress dowager Eleanor Gonzaga, and took place in 1671. Anna Isabella Gonzaga was the heir of the Duchy of Guastalla and Luzzara Reggiolo, and her rights transferred these areas, which had been a long concern of conflicts between the two Gonzaga lines, to the Mantua line of the Gonzaga dynasty. On November 8, 1704 he married secondly Suzanne Henriette de Lorraine known in France prior to marriage as Mademoiselle d'Elbeuf (February 1, 1686-December 19, 1710), daughter of Charles de Lorraine, Duke of Elbeuf by his third spouse, Françoise de Montault de Navailles, daughter of Philippe de Montault de Bénac, Duke of Navailles. This marriage was childless.
Frustrated by the Austrians in the conquest of Guastalla, he concluded a pact with Louis XIV of France on December 8, 1678, selling Casale. In this context his minister, Count Ercole Antonio Mattioli, might have become the Man in the Iron Mask, being imprisoned in Pinerolo since April 1679 for disclosing this pact to the enemies of France.
The duke denied everything, but concluded a new pact with the French in 1681, obtaining thereby a yearly pension of sixty thousand lire, a career as an army general, and a part in any future French conquests in Italy. The French occupied Casale on September 29, 1681, and the Duke of Mantua lost respect in Italy.
Ferdinando Carlo again chose the French side in the War of the Spanish Succession. In 1701, when the anti-French coallition-forces conquered Mantua, he fled to Casale, leaving his consort Anna Isabella Gonzaga behind as regent during his absence. He paid heavily for his choice, when the French were chased back over the Alps in 1706. Already declared a traitor in 1701 by Joseph I, Holy Roman Emperor, all his possessions were confiscated in 1708.
The House of Savoy obtained the remaining half of Montferrat, having already conquered the first half in the War of the Mantuan Succession in 1631. The Duchy of Mantua became Austrian and ceased its independent existence. Ferdinando Carlo died the same year in Padua.