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 Tadla Treaty of Tadla The Treaty of Tadla was a treaty signed in 1527 between the rival Moroccan dynasties of the Marinid Wattasids in the north of the country, and the southern Saadis. The treaty followed an inconclusive military encounter between the two parties at Tadla. The Treaty confirmed to the Saadis the area of Sus and Marrakesh, while the rest of the country, with the capital of Fez, remained to the Wattasids. The internal conflict had weakened the Moroccans in their capability to resist European encroachment, particularly from the Portuguese, but the treaty at last gave some level of stability