Pará-class monitor
 The Pará class monitors were a group of six wooden-hulled ironclads named after Brazilian states and built in Brazil for the Brazilian Navy during the Paraguayan War in the late 1860s. The first three ships finished Pará Alagoas and Rio Grande participated in the Passagem de Humaitá in February 1868. Afterwards the remaining ships joined the first three and they all provided fire support for the army for the rest of the war.