Barons of Claros Barões de Claros Created by Louis I, king of Portugal Decree date 15-09-1870 Decree date 28-09-1870 First holder Gustavo de Almeida de Sousa e Sá, 1st baron of Claros * 1804 Records #1 Holders Family filter On/Off 1 Gustavo de Almeida de Sousa e Sá, 1st baron of Claros * 1804 Sources Nobreza de Portugal e Brasil - 3 vols-vol. 2-pg. 530 Corrections and Updates To suggest a correction or an update. Click Here