In 1835 new proposals for the municipal arrangement were made, where Caldas de Reyes would have had six city councils. One of them would have been Barro with seven parishes and 2 459 inhabitants. Once the Provincial Council of Pontevedra was constituted in 1836 the final agreement increased the number of town halls, leaving Barro with the six parishes it still has. The new municipality of Barro appears in documentation of the judicial party of Caldas de Reyes in 1836 as having 2 407 inhabitants.