parties shall not dare, on either side, to enter the territory of the other, by crossing the said mark or bound in such island or mainland.
[4.] Item, inasmuch as the said ships of the said King and Queen of Castile, Leon, Aragon, etc., sailing as before declared, from their kingdoms and seigniories to their said possessions on the other side of the said line, must cross the seas on this side of the line, pertaining to the said King of Portugal, it is therefore concerted and agreed that the said ships of the said King and Queen of Castile, Leon, Aragon, etc., shall, at any time and without any hindrance, sail in either direction, freely, securely, and peacefully, over the said seas of the said King of Portugal, and within the said line. And when ever their Highnesses and their successors wish to do so, and deem it expe dient, their said ships may take their courses and routes direct from their kingdoms to any region within their line and bound to which they desire to despatch expeditions of discovery, conquest, and trade. They shall take their courses direct to the desired region and for any purpose desired therein, and shall not leave their course, unless compelled to do so by contrary weather. They shall do this provided that, before crossing the said line, they shall not seize or take possession of anything discovered in his said region by the said King of Portugal; and should their said ships find anything before crossing the said line, as aforesaid, it shall belong to the said King of Portugal, and their Highnesses shall order it surrendered immediately. And since it is possible that the ships and subjects of the said King and Queen of Castile, Leon, etc., or those acting in their name, may discover before the twentieth day of this present month of June, following the date of this treaty, some islands and mainlands within the said line, drawn straight from pole to pole, that is to say, inside the said three hundred and seventy leagues west of the Cape Verde Islands, as aforesaid, it is hereby agreed and determined, in order to remove all doubt, that all such islands and mainlands found and discovered in any manner whatsoever up to the said twentieth day of this said month of June, although found by ships and subjects of the said King and Queen of Castile, Aragon, etc., shall pertain to and remain forever in the possession of the said King of Portugal and the Algarves, and of his suc cessors and kingdoms, provided that they lie within the first two hundred and fifty leagues of the said three hundred and seventy leagues reckoned west of the Cape Verde Islands to the above-mentioned line--in whatsoever part, even to the said poles, of the said two hundred and fifty leagues they may be found, determining a boundary or straight line from pole to pole, where the said two hundred and fifty leagues end. Likewise all the islands and main lands found and discovered up to the said twentieth day of this present month of June by the ships and subjects of the said King and Queen of Castile, Aragon, etc., or in any other manner, within the other one hundred and twenty leagues that still remain of the said three hundred and seventy leagues where the said bound that is to be drawn from pole to pole, as afore said, must be determined, and in whatever part of the said one hundred and twenty leagues, even to the said poles,--they that are found up to the said day shall pertain to and remain forever in the possession of the said King and Queen of Castile, Aragon, etc., and of their successors and kingdoms; just as whatever is or shall be found on the other side of the said three hundred and seventy leagues pertaining to their Highnesses, as aforesaid, is and must be theirs, although the said one hundred and twenty leagues are within the
