Arguin
In 1685, Captain Cornelius Reers of the frigate  occupied the old Portuguese fort on the island. He made a treaty with the native king in which Brandenburg was accepted as a protecting power. The treaty was ratified in 1687 and was renewed in 1698. Arguin remained a colony of Brandenburg until 1721 when the French successfully attacked the fort and then took over the island. The Dutch took the fort and island from the French the following year only to lose it again in 1724 to the French. This period of French rule lasted four years. In 1728, the indigenous peoples got control of the island.  The island was included in the territory of the French colony of Mauritania, and it stayed Mauritanian when the country became independent in 1960.