 For a time after 1564, the Portuguese were forced to leave Ambon altogether, although they came back and established a stronghold in 1569.Moreover, Baab undertook an expedition to the northern parts of Sulawesi in 1563 in order to bring these lands under his father's realm.The Portuguese authorities in Maluku understood that this would be paired with the dissemination of Islam and therefore detrimental to their position in the East Indies, and efforts were made to convert populations in Menado, Siau Island, Kaidipang, Toli-Toli, etc.