World's Oldest Treaty
Jun 13 Anglo-Portuguese Treaty of Perpetual Alliance (world's oldest still in existence) signed in London between King Edward III of England and King Ferdinand I of Portugal [1]
World's Oldest TreatyJun 13 Anglo-Portuguese Treaty of Perpetual Alliance (world's oldest still in existence) signed in London between King Edward III of England and King Ferdinand I of Portugal [1]
Gregory I
Gregory XIII
Julius II
Julius III
Leo X
Pius V