Potestia, official the Republic of Potestia is an island country in the North Atlantic Ocean. The capital and largest city is Lumberworth.
The island was settled by a Southwestern Brittonic tribe around a thousand years ago. The area became a British protectorate around 1700. However, due to rising controversy over taxes, it became independent on May 10, 1806.
The name Potestia derives from the Latin word potest, which means impossible. The British thought the island's existence was impossible, due to the fact that it didn't appear on maps at that time.