I will start:
Antonio Conselheiro, born Antônio Vicente Mendes Maciel in 1830 in Quixeramobim, in the Brazilian province of Ceará, grew up in a family of modest merchants and lost his mother young. He worked as a shopkeeper, clerk, and teacher, but his life came apart in the 1860s after his wife left him, an episode that has long been tied to his turn toward religion. By the mid-1870s he was wandering the backlands of the Northeast as a lay preacher, repairing chapels, building churches and cemeteries, and gathering a following among poor rural people, which earned him the title "the Counselor." Church authorities and local landowners grew wary of him, and he was briefly arrested in 1876 and sent back to Ceará. After the abolition of slavery in 1888 and the proclamation of the Republic in 1889, he spoke openly against the new government, partly over the introduction of civil marriage and new taxes. In 1893 he settled with his followers at an abandoned ranch on the Vaza-Barris River in Bahia and founded Belo-Monte (better know as Canudos), a town which grew to an estimated 20,000 to 30,000 residents by 1896. Authorities and landowners saw it as a threat, and the government sent four military expeditions against it between 1896 and 1897. The first three were defeated, but the fourth, much larger, besieged the settlement. Conselheiro died in September 1897, reportedly of illness, shortly before Canudos was destroyed in early October. It is estimated that 25 thousand brazilians were killed in Canudos.