In 1542, the Navarrese Jesuit Francis Xavier, co-founder of the Society of Jesus; arrived in Goa. He discovered that the newly converted Christians were practising their old Hindu customs and traditions. He requested the Portuguese king João III to install an Inquisition in Goa in 1545. Many of the Goan ancestors of the present Mangalorean Catholics fled Goa when the Inquisition began in 1560. King Sebastião I decreed that every trace of Indian customs should be eradicated through the Inquisition. Many Christians of Goa were tenaciously attached to some of their ancient Indian customs, especially their traditional Hindu marriage costumes, and refused to abandon them. Those who refused to comply were forced to leave Goa and to settle outside the Portuguese dominion, which resulted in the first major wave of migrations towards South Canara.