Dieppe
First recorded as a small fishing settlement in 1030, Dieppe was an important prize fought over during the Hundred Years' War.
Dieppe housed the most advanced French school of cartography in the 16th century. Two of France's best navigators, Michel le Vasseur and his brother Thomas le Vasseur, lived in Dieppe when they were recruited to join the expedition of René Goulaine de Laudonnière which departed Le Havre for Florida on April 20, 1564. The expedition resulted in the construction of Fort Caroline, the first French colony in the New World. Another expedition two years before where Goulaine de Laudonnière was under command of Jean Ribault, a local Huguenot captain, had resulted in the foundation of Charlesfort, now in South Carolina. Dieppe was the premier port of the kingdom in the 17th century.
On July 23, 1632, 300 colonists heading to New France departed from Dieppe.
At the Revocation of the Edict of Nantes in 1685, Dieppe lost 3,000 of its Huguenot citizens, who fled abroad.
Diez, Germany
The county of Nassau-Diez, like other Nassau territories, was occupied by Napoleonic France in 1795 and in 1806 was annexed by the Duchy of Nassau (ruled by the branch of Nassau-Weilburg) on 16–17 September 1796 as a consequence of the 2nd Coalition war between Austrians and French in the area between Diez and Limburg. By the end of the 18th century the entire west bank of the Rhine went to France and in 1803 a new Principality of Orange was formed from other territories, however only to be divided between the Duchy of Nassau and the Grand Duchy of Berg in 1806. William I of the Netherlands recovered his former counties in 1813, but gave Nassau-Diez, Nassau-Hadamar und Nassau-Dillenburg to Prussia, in exchange with Luxembourg, two years later. Prussia kept only Nassau-Siegen and soon ceded the other counties to the Duchy of Nassau which was however annexed by Prussia, including Diez, after the Austro-Prussian War in 1866, for Nassau's support of Austria.