Baron of Rio Preto

Baron of Rio Preto is a Brazilian noble title created by Emperor Pedro II of Brazil, by decree of December 6, 1854, in favor of Domingos Custódio Guimarães.

Holders

Domingos Custódio Guimarães – first viscount of Rio Preto;
Domingos Custódio Guimarães Filho – second baron of Rio Preto.