<P> Under the treaty , Portugal gained control of all lands and seas west of the line , including all of Asia and its neighbouring islands so far `` discovered '' , leaving Spain with most of the Pacific Ocean . Although the Philippines was not mentioned in the treaty , Spain implicitly relinquished any claim to it because it was well west of the line . Nevertheless , by 1542 , King Charles V had decided to colonise the Philippines , assuming that Portugal would not protest too vigorously because the archipelago had no spices . Although he failed in his attempt , King Philip II succeeded in 1565 , establishing the initial Spanish trading post at Manila . As his father had expected , there was little opposition from the Portuguese . </P>
who had most of asia in its sphere of interest after the treaty of saragossa
Portugal