made without condition and agreement to sell back. However, since it may happen that, when the aforesaid subjects, natives, or vassals of the said emperor and king of Castilla navigating as aforesaid in the southern seas, should meet with winds so tempestuous or contrary that they would be constrained by necessity to continue their course and navigation within the said line, they shall in such case incur no penalty whatever. On the contrary, when, in such circumstances, they shall come to and anchor at any land included within the said line, pertaining by virtue of this contract to the said King of Portugal, they shall be treated by his subjects, vassals, and inhabitants of said land as the vassals of his brother, as in the same manner the emperor and king of Castilla would command the Portuguese subjects to be treated who should in like manner arrive at ports in his lands of Nueva España or in any other of his ports. It is understood, however, that, when such necessity ceases, they shall immediately set sail and return to their part of the southern seas. Should the aforesaid subjects cross said line through ignorance, it is herein covenanted and agreed that they shall incur on that account no penalty whatsoever, and as long as it is not fully evident that they know themselves to be within the said line, they shall not turn about and go outside of it, as is covenanted and agreed in case of entering on account of tempestuous and contrary winds or necessity. But, when such a fact is quite evident, if it shall be proved that they have entered the line maliciously, they shall be punished and dealt with as those who shall enter the line as aforesaid and as is set forth in this contract. Should the aforesaid discover any islands or lands, while navigating within the said
