 This took place in 1480 and was likely intended as a way of gaining direct access to the sugar plantations of what was developing as an important Portuguese colony.In this period he also seems to have served as a purser or factor on the "Trinity" of Bristol, which was used for an expedition looking for the 'Isle of Brasil' in the Atlantic..In February 1488 Weston was acting as the 'attorney' to the prominent Bristol merchant, John Foster.