Barons of Açu Barões do Açu Created by Pedro II, Emperor of Brazil Decree date 17-11-1888 First holder Luis Gonzaga de Brito Guerra, 1st baron of Açu * 1818 Records #1 Holders Family filter On/Off 1 Luis Gonzaga de Brito Guerra, 1st baron of Açu * 1818 Sources Nobreza de Portugal e Brasil - 3 vols-vol. 3-pg. 561 Corrections and Updates To suggest a correction or an update. Click Here