In the like manner the citizens and inhabitants of the United States of North America shall freely frequent and reside in the States of Her Most Faithful Majesty in Europe; also in Madeira and the Azores, and trade there in all kinds of effects and merchandises, the importation and exportation of which is not, or shall not be prohibited, and they shall not pay in the ports, harbors, roads, countries, islands, cities, and places of the Queen of Portugal, other or greater duties of any kind whatsoever than such as the most favored nations are, or shall be, bound to pay; and they shall enjoy all the rights, liberties, privileges, immunities, and exemptions as to trade, navigation, and commerce, whether in going from one port of Her Most Faithful Majesty's States to another, or in going there, or returning from any part of the world whatever, which the said nations do or shall enjoy. ARTICLE IV. Her Most Faithful Majesty shall use every means in her power to protect and defend all the vessels and property belonging to the subjects, people, and inhabitants of the said United States, which shall be in her ports, harbors, or roads, against any violence whatever that may be committed by the subjects of her said Majesty, by punishing such as shall violate these principles. ARTICLE V. The preceding article, shall be in like manner reciprocally and exactly observed on the part of the United States, with respect to the vessels and property belonging to the subjects of her said Majesty, which shall be found in their ports, harbors, or roads, against any violence that may be committed by the subjects of the United States. ARTICLE VI. If any squadrons or vessels of war touch at the ports, or enter into the seas in the neighborhood of Her Most Faithful Majesty's States, they shall conform to the regulations already established with respect to the other most favored maritime powers. ARTICLE VII. The United States of America likewise oblige themselves reciprocally to observe with exactitude the stipulations contained in the above article. ARTICLE VIII.