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In page Jesuits:

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In 1624, the Portuguese Jesuit António de Andrade founded a mission in Western Tibet. In 1661, two Jesuit missionaries, Johann Grueber and Albert Dorville, reached Lhasa, in Tibet. The Italian Jesuit Ippolito Desideri established a new Jesuit mission in Lhasa and Central Tibet (1716–21) and gained an exceptional mastery of Tibetan language and culture, writing a long and very detailed account of the country and its religion as well as treatises in Tibetan that attempted to refute key Buddhist ideas and establish the truth of Catholic Christianity.[citation needed]