Roberto Ivens
Roberto Ivens (12 June 1850 in Ponta Delgada – 28 January 1898 in Dafundo, Oeiras) was a Portuguese explorer of Africa, geographer, colonial administrator, and an officer of the Portuguese Navy.
Roberto Ivens

Alfred Fillon · http: Gallica.fr · Public domain
- Name
- Roberto Ivens
- Born
- 12 June 1850
- Birthplace
- Ponta Delgada, Azores, Portugal
- Died
- 28 January 1898
- Place of death
- Oeiras, Portugal
- Occupation
- Navy officer, explorer, geographer, colonial administrator
- Known for
- First European (alongside Hermenegildo Capelo) to cross Central Africa from coast to coast between Angola and Mozambique.
- Nationality
- Kingdom of Portugal
- Honours
- Commander of the Order of Saint James of the Sword · Officer of the Order of Aviz
- Languages
- Spanish
VALÉORINE Encyclopedia
VALÉORINE documentary reading
Documentary summary
Roberto Ivens (12 June 1850 in Ponta Delgada – 28 January 1898 in Dafundo, Oeiras) was a Portuguese explorer of Africa, geographer, colonial administrator, and an officer of the Portuguese Navy.
Admitted source layer · organised and presented by VALÉORINE
Reference Check
Propose documentary evidence for Roberto Ivens. A contribution is never written directly as fact: identity, source, rights and evidence gates still decide.
Sign in to contribute
World of VALÉORINE
Documentary connections
Only confirmed graph relationships appear here. Images are shown only when their identity and reuse rights both pass the documentary gate.
Documentary evidence
Documentary basis
Authority files
wikidata · Q1744490 · wikipedia · Roberto Ivens
In this article
Key facts
Key facts
• Name — Roberto Ivens • Born — 12 June 1850 • Birthplace — Ponta Delgada, Azores, Portugal • Died — 28 January 1898 • Place of death — Oeiras, Portugal • Occupation — Navy officer, explorer, geographer, colonial administrator • Known for — First European (alongside Hermenegildo Capelo) to cross Central Africa from coast to coast between Angola and Mozambique.
Early life
Early life
Roberto Ivens was the son of Margarida Júlia de Medeiros Castelo Branco and Robert Breakspeare Ivens (1822–?). Margarida was of lower nobility and Roberto's Grandfather, William Ivens, was a merchant awarded the Ivens Arms by George III in 1816. Robert Breakspeare Ivens was a great-grandson of Thomas Hickling (Boston 1745–1836 Ponta Delgada) the American vice-consul in Ponta Delgada. In 1861, Ivens attended the Navy School in Lisbon. At school Roberto was known as "Roberto of the Devil" and he became known as an intelligent young gentleman. He joined the Portuguese Navy in 1870 at the age of 20 and attended Escola Prática de Artilharia Naval in 1871. Ivens left for the Suez Canal in September of the same year, where he was the garrison of the Estefânia.
Travels
Travels
• Illustration — Roberto Ivens (right) with Hermenegildo Capelo in Iaca. Ivens began his travels in Angola in 1872. On 10 October 1874 he completed three years of travels in the colonies. Returning to Portugal in January 1875, Ivens made examination for lieutenant. In April 1875, he sailed on the Duque de Terceira for Portuguese São Tomé and Príncipe and various ports of South America. In 1876, Ivens set out for the United States, bringing Portuguese products to Philadelphia for the Centennial Exposition. His ancestor, Thomas Hickling, had been an ardent American revolutionary, and had in fact left Boston for the Azores following an argument with his loyalist father. Ivens went on an expedition into the provinces of Angola and Mozambique beginning on 11 May 1877, and studied relations between hydrographic basins in Zambezi. His hydrographic studies are considered even today to be "amazingly perfect". In the same year he was promoted to the rank of first lieutenant. Ivens went on an expedition on 21 June 1885 at Quelimane in Mozambique. Ivens, as requested by the King Luís I, and in the aftermath of the Berlin Conference, to travel between Angola and Mozambique, which ended in over 4,500 miles (about 8,300 km) of which 1/3 was uncharted in what was called "Pink Map". For his service to Portugal, Roberto had the honor of being named aide-de-camp to King Luís. In 1895, he was made Officer of Military Order of Aviz and was nominated on October 17 as secretary of the Commission of Cartography.
Partial list of works
Partial list of works
• De Benguela às Terras de Iaca 1881 • De Angola à Contracosta 1886
Places
Named by the record
Places
Only places the record itself states, plotted where the house gazetteer settles their coordinates. Nothing is inferred from a name or a nationality.
Ponta Delgada.
Birth place
Lisbon.
Death place
Primary material
Documents and archives
authority record
- Wikidata, structured authority record Q1744490: Roberto Ivens
General reference · Wikidata
reference work
- “Roberto Ivens”, English Wikipedia, consulted as further reading
Reputable secondary · Wikipedia
Honours
Portugal has ten streets named after Roberto Ivens including one in Ponta Delgada named Avenida Roberto Ivens. Several schools are named in his honor, including Escola Básica Integrada Roberto Ivens, near his birthplace. A species of African lizard, Lubuya ivensii, is named in his honor. He was also portrayed in the 500 Angolan escudo banknote issued in 1956. In 2019, TAP Air Portugal named an Airbus A321, registered CS-TXD, for Roberto Ivens.
Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.THE IVENS FAMILY.
- 2.The American Consulate in the Azores: A Brief History.
- 3.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . (Ivens, p. 131).
- 4.Angola - Banco de Angola 500 Escudos Bank Note Museum
- 5.Cited in the source article.
References
Citations
References
Each reference names the institution holding it, so a reader may go to the document itself.
authority record
Secondary witnessreference work
Secondary witness
People, houses and institutions
Knowledge graph
People, houses and institutions
Teachers, collaborators, publishers and institutions recorded against this person, each on a stated basis.
Citizenship
1- Kingdom of PortugalPlace
Established from a fact already recorded on a verified source.
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 16 August 2026.
Elsewhere in Maps and atlases
1,180 published records in this field, each with its sources named.
- Robert MoresbyAuthor
- Robert Owen JonesAuthor
- Robert SayerAuthor
- Robert SibbaldAuthor
- Roderich von ErckertAuthor
- Rodrigo ZamoranoAuthor
- Ron CarpenterAuthor
- Rouben GalichianAuthor
Best supported in this field
For owners
Own a work by Roberto Ivens?
A specialist will read what you send and tell you what the house can establish, what it cannot, and whether the object is suited to sale. There is no charge and no obligation. The object stays with you throughout; nothing is shipped to us unless it is arranged in writing beforehand.