Holders

• 1 João da Costa Carvalho, 1st viscount of Ribamar * 1790
• 2 Henriqueta Sofia Leonor da Costa Carvalho, 2nd viscountess of Ribamar * 1835
• 3 João da Costa Carvalho Talone, 3rd viscount of Ribamar * 1866
• 4 Augusto Frederico Potsch da Costa Carvalho Talone, 4th viscount of Ribamar * 1891
• 5 João Augusto Sanguinetti da Costa Carvalho Talone, 5th viscount of Ribamar * 1923

Sources

• Nobreza de Portugal e Brasil - 3 vols-vol. 3-pg. 211-212

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