 His daughter, Bartira, took the name Isabel and married a Portuguese man named João Ramalho.After his conversion to Christianity he became a strategic ally and protector of the Jesuits and the Portuguese; his name appears on letters to Saint Ignatius of Loyola and King João III of Portugal.Tibiriçá chose to side with the Jesuits and against his own brother Piquerobi with help of his nephew and his son-in-law João Ramalho.