Karl Heinrich von Nassau-Siegen

He sailed around the world with Bougainville, "fought tigers bare-handed" in Central Africa and reportedly seduced the Queen of Tahiti.

Emmanuel Ignatius (d. 1735) had an unhappy union with the French noblewoman Charlotte de Mailly-Nesle (d. 1769) and became separated from her after a few years of marriage, during which they had two short-lived sons; years later (in 1722) they reconciled, and Emmanuel Ignatius recognized the third and only surviving son of his wife, the aforementioned Maximilien Guillaume Adolphe, as his own; however, shortly before his death (26 August 1734), he repudiated the child, declaring him adulterous.

Charles Henry entered the French Navy at the age of 15, but led a dissolute life as a gambler at the royal courts of Vienna, Warsaw, Madrid and Versailles.

Probably to escape his creditors, he joined the 1766 expedition of Louis Antoine de Bougainville to explore the South Pacific Ocean.

[citation needed] At Spa he met his future wife, Polish Countess Karolina Gozdzka, who was recently divorced Prince Sanguszko and the owner of a small estate in Podolia, then in the Polish–Lithuanian Commonwealth.

According to John Paul Jones (who served under Nassau-Siegen's command), the putative prince sought to exaggerate his success to the utmost.

The location of his former palace in Warsaw has been since parcelled and transformed into residential units and park along Dynasy Street, the name of which is derived from De Nassau.