| Honorific-Prefix: | His Excellency |
| The Count of Sobral | |
| Honorific-Suffix: | ComC |
| Office: | Secretary of State for the Exchequer |
| Term Start: | 1 August 1826 |
| Term End: | 8 June 1827 |
| Predecessor: | The Count of Murça |
| Successor: | The Count of Lousã |
| Office1: | Secretary of State for Foreign Affairs |
| Term Start1: | 28 May 1823 |
| Term End1: | 30 May 1823 |
| Monarch1: | John VI |
| Predecessor1: | Silvestre Pinheiro Ferreira |
| Successor1: | Francisco de Oliveira |
| Birth Date: | 16 September 1775 |
| Birth Place: | Lisbon, Portugal |
| Death Place: | Lisbon, Portugal |
Hermano José Braamcamp de Almeida Castelo-Branco, 5th Lord, 2nd Baron, 1st Viscount and 1st Count of Sobral, 5th Lord of the Majorat of Sobral, 3rd Lord of the Majorat of Luz, ComC (16 September 1775 – 2 February 1846), Chief of the Name and Arms of da Cruz Sobral, was a Portuguese nobleman and politician.
He was the first of six children and son of Geraldo Venceslau Braamcamp de Almeida Castelo-Branco and Joana Maria da Cruz Sobral. Geraldo was the 4th Lord jure uxoris and 1st Baron of Sobral, 2nd Lord and Administrator of the Majorat of a Luz (28 September 1752 – 6 July 1828), of the Counsel of Queen Maria I and King Peter III, Deputy of the Board of Commerce (Junta do Comércio), Commander of the Order of Christ and 1st Baron of Sobral by Decree of 14 May 1813 of Prince Regent John, who succeeded his mother in the Majorat of Luz. Joana Maria da Cruz Sobral was the 4th Lady of the Village of Sobral de Monte Agraço, 4th Lady and Administrator of the Majorat of Sobral and Chief of the Name and Arms of da Cruz Sobral (born or bap. 9 June 1760 – 21 October 1812), of Italian maternal descent, who succeeded her brother Sebastião António da Cruz Sobral, 3rd Lord of Sobral and 3rd Lord of the Majorat of Sobral, Chief of the Name and Arms of da Cruz Sobral, Alcaide-Major of Freixo de Numão, Nobleman of the Royal Household, of the Counsel of Queen Maria I, Commander of the Order of Christ, Alderman of the Senate of the Chamber of Lisbon, Counselor of the Royal Treasury, Fiscal of Public Works (born 22 September 1757 or bap. 23 December 1758 and brother of Leonor Clara da Cruz Sobral, born 6 August 1781). Hermano's parents married on 20 February 1773.
Bachelor in Law from University of Coimbra, he was 5th Lord of Sobral de Monte Agraço and 5th Lord of the Majorat of Sobral, succeeding his mother, who ceded them to him in 1806, and 3rd Lord of the Majorat of a Luz, succeeding his father on 6 July 1828. He enlisted as Captain in the Cavalry Regiment of the Pier of Lisbon on 30 September 1796, for having presented a Cavalry Company at his own expense, which became adstricted to the same Regiment, and had leave from the service on 3 March 1803.
He took an active part in the liberal politics and was appointed, after the Liberal Revolution of 1820 in Porto as a Member of the Provisional Regency of the Government of the Realm, then instituted (merged later with the one of Porto). Withdrawn in 1823 from the public businesses, after the Vilafrancada he returned to the political activity when, in 1826, the Constitutional Charter was sworn, under the Regency of Infanta Isabel Maria of Portugal, becoming part, as 24th Secretary of State of the Treasury Affairs or Minister of the Treasury, of a constitutional government, in which Saldanha was Minister of War. Miguel's coup, proclaiming himself King, withdrew him again from politics. In 1833, after the victory of the liberal forces, he was appointed Member of the Commission created to take knowledge in charge of the study of the state of the consolidated external debt, etc., on 18 July 1838. He also became a Peer of the Realm in 1835, Honorary Minister and Counselor of State and Commander of the Order of Christ.
The title of Baron was renewed to him by Decree of 3 March 1824 of John VI during his father's lifetime, and was raised to Viscount, with Grandee status, by Decree of 14 September 1838 and then to Count by Decree of 13 December 1844, both of Maria II. He owned a palace at the Largo do Calhariz and a farm on a Luz. His coat of arms was quartered, on the first de Narbonne, on the second de Almeida, on the third Castelo-Branco and on the fourth patterned of da Cruz Sobral and Braamcamp, with a crest of de Narbonne and a coronet of Duke (allusive to the representation of the ducat de Narbonne-Lara and, more accurately, to the Grandeeship of Spain 1st Class). Motto: Labor vincit aerumnas.
He married at Agen on 17 February 1806 Louise Amable Rion Françoise de Narbonne-Lara (Nice, 25 May 1786 – Lisbon, 28 March 1849), Dame of Honour of Her Majesty Queen Maria II (with right to the Grandeeship of Spain 1st Class for being representative of her paternal uncle the 2e duc de Narbonne-Lara, of whom she was the heiress for him not having posterity), first-born daughter of Louis Marie Jacques Amalric, comte de Narbonne-Lara and Adélaïde Marie de Montholon, and had issue, two daughters:
Two of his descendants are Salvador and Luísa Sobral, the winner and winning songwriter of the Eurovision Song Contest 2017. They also share the family name of Braamcamp Sobral.