鄭主
Catholic missions in Vietnam continued uninterrupted, but the most influential to make impact on the rise of Christian Church was Frenchman Alexandre de Rhodes. Father Alexandre had helped spreading Christianity, especially Catholicism in Vietnam; but the most was the creation of Vietnamese alphabet, called "Quốc Ngữ", which would be used in Vietnam since the 20th century. Under the era of the North's Trịnh lords and the South's Nguyễn lords, Christianity was viewed with skepticism in both, though the Trịnh lords were more hostile than its southern rival and had expelled Christians from the country. The Nguyễn lords, while not too opening either, seen to be more Christian-friendly than the Trịnh lords and Christianity became more widespread, resulted with the larger Christian population in the south than the north today.