vatican city pope francis canonize 35 new roman catholic saint sunday include three indigenous children martyr 16th century mexico consider first christians kill faith new world francis use occasion announce decide call meet bishops synod countries pan-amazon region october 2019 discuss condition church area plight indigenous people region include guyana suriname french guyana venezuela ecuador colombia bolivia peru brazil three children pope canonize crowd tens thousands st. peter square talaxcaltec people indigenous pre-colombian group mexico first child cristoforo convert christianity franciscan missionaries kill 1527 father tribal chief spurn son attempt convert paganism boy beat throw fire 13. two indigenous children area antonio juan kill indios village cuauhtinchan 1529 result conversion believe 12 13 beat death help dominican missionaries pope also canonize 30 martyr kill faith brazil 1645. include two portuguese missionaries 28 followers kill dutch colonial soldier period persecution catholics announce 2019 synod bishops amazon region francis say indigenous people today often abandon without prospect bright future even due crisis amazon forest lung utmost importance planet francis argentine first latin american pope often link call social justice particularly indigenous people defense environment say poor suffer effect climate change 2015 write landmark encyclical papal letter defense environment call special protection amazon region vital importance planet ecosystem comment sunday pope mention role church suppress native culture new world visit bolivia 2015 francis say many grave sin commit native people america name god ask forgiveness church crimes commit native people so-called conquest america sunday francis also canonize father faustino miguez spanish priest live 19th 20th centuries father angelo acri italian itinerant preacher die 1739 serve remote areas mountainous southern italy pope canonize first new world martyr call amazon synod 2019