Anglo-Portuguese Treaty of 1373 Anglo-Portuguese Treaty of 1373 The Anglo-Portuguese Treaty of 1373 was signed on 16 June 1373 between King Edward III of England and King Ferdinand and Queen Eleanor of Portugal. It established a treaty of "perpetual friendships, unions [and] alliances" between the two seafaring nations. It is the oldest active treaty in the world. It was confirmed "with my usual flourish" by John de Banketre, Clerk. It was reinforced throughout history, including in 1386, 1643, 1654, 1660, 1661, 1703, 1815 and by a secret declaration in 1899. It was recognized in the Treaties of Arbitration in the 20th century between Britain
Treaty of Aix-la-Chapelle (1748) proposed terms of the treaty, which had previously been agreed at the Congress of Breda, and other nations accepted them: For the most part, the Treaty of Aix-la-Chapelle and the War of Austrian Succession concluded status quo ante bellum. In the commercial struggle between Britain and France in the West Indies, Africa, and India, nothing was settled; the treaty was thus no basis for a lasting peace. In France, there was a general resentment at what was seen as a foolish throwing away of advantages (particularly in the Austrian Netherlands, which had largely been conquered by the brilliant strategy of