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In page Juan Rodríguez Cabrillo:

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In 1539, Francisco de Ulloa, who had been commissioned by Cortés, explored and named the Sea of Cortés (Gulf of California) and reached nearly as far north as the 30th parallel.[2] Cabrillo was then commissioned by the new Viceroy of New Spain, Antonio de Mendoza, to lead an expedition up the Pacific coast in search of trade opportunities, perhaps to find a way to China (for the full extent of the northern Pacific was unknown) or to find the mythical Strait of Anián (or Northwest Passage) connecting the Pacific Ocean with Hudson Bay.[citation needed] Cabrillo built and owned the flagship of his venture (three ships), and stood to profit from any trade or treasure.[3]