paragraph_text: In the early 15th century, the countries of the Iberian peninsula began to sponsor exploration beyond the boundaries of Europe. Prince Henry the Navigator of Portugal (d. 1460) sent expeditions that discovered the Canary Islands, the Azores, and Cape Verde during his lifetime. After his death, exploration continued; Bartolomeu Dias (d. 1500) went around the Cape of Good Hope in 1486 and Vasco da Gama (d. 1524) sailed around Africa to India in 1498. The combined Spanish monarchies of Castile and Aragon sponsored the voyage of exploration by Christopher Columbus (d. 1506) in 1492 that discovered the Americas. The English crown under Henry VII sponsored the voyage of John Cabot (d. 1498) in 1497, which landed on Cape Breton Island.

paragraph_text: The Rosenthal Islands are a group of islands fringing the west coast of Anvers Island, north of Cape Monaco, in the Palmer Archipelago of Antarctica. The largest of them is Gerlache Island. Discovered by the German expedition 1873-74, under Dallmann, and named by him for Albert Rosenthal, Director of the Society for Polar Navigation who, with the society, sponsored the expedition.

paragraph_text: São Tomé and Príncipe (; Portuguese: [sɐ̃w̃ tuˈmɛ i ˈpɾĩsɨpɨ]), officially the Democratic Republic of São Tomé and Príncipe, is an island country in the Gulf of Guinea, off the western equatorial coast of Central Africa. It consists of two archipelagos around the two main islands of São Tomé and Príncipe, about 140 kilometres (87 miles) apart and about 250 and 225 kilometres (155 and 140 miles) off the northwestern coast of Gabon, respectively.

paragraph_text: Pedro de Merelim was a pseudonym of the Portuguese historian and ethnographer "Joaquim Gomes da Cunha" (1913 in São Pedro de Merelim, Portugal – 2002 in Angra do Heroísmo, Azores).

paragraph_text: São Pedro Apóstolo is a "freguesia" (civil parish) of Cape Verde. It covers the western part of the municipality of Ribeira Grande, on the island of Santo Antão.

paragraph_text: São Pedro is a village in the southwestern part of the island of Sao Vicente, Cape Verde. It is situated on the south coast, approximately 10 km southwest of the island capital Mindelo. In 2010 its population was 991. Cesária Évora Airport, the island's international airport is directly north of São Pedro. It was mentioned as a small port as "P. St. Pedro" in the 1747 map by Jacques-Nicolas Bellin. The lighthouse Farol de D. Amélia sits on the "Ponta Machado", 3 km west of the village.

paragraph_text: Pedro Sernagiotto, also known as Pietro Sernagiotto or Ministrinho (born November 17, 1908 in São Paulo; died April 5, 1965 in São Paulo) was an Italian Brazilian professional football player. He also held Italian citizenship and on October 22, 1933 played for the Italian national B team against Hungary.

paragraph_text: The islands of São Tomé and Príncipe were uninhabited when the Portuguese arrived sometime around 1470. The islands were discovered by João de Santarém and Pêro Escobar. Portuguese navigators explored the islands and decided that they would be good locations for bases to trade with the mainland.

paragraph_text: Mount Longhurst () is a prominent mountain, high, standing west of Mill Mountain and forming the highest point of Festive Plateau in the Cook Mountains of Antarctica. It was discovered by the British National Antarctic Expedition (1901–04) and named for Cyril Longhurst, secretary of the expedition.

paragraph_text: Northcliffe Glacier () is a glacier descending to the coast immediately east of Davis Peninsula, in Antarctica. It was discovered by the Australasian Antarctic Expedition, 1911–14, under Mawson, and named for Lord Northcliffe, of London, a patron of the expedition.

paragraph_text: Manoury Island is an island lying south of Gand Island at the north end of Schollaert Channel, in the Palmer Archipelago, Antarctica. It was discovered by the French Antarctic Expedition, 1903–05, and named by Jean-Baptiste Charcot for G. Manoury, secretary of the expedition.

paragraph_text: São Pedro do Turvo is a municipality in the state of São Paulo in Brazil. The population is 7,567 (2015 est.) in an area of 731 km². The elevation is 457 m.

paragraph_text: The Leopold and Astrid Coast () is that portion of the coast of Antarctica lying between the western extremity of the West Ice Shelf, at 81°24′E, and Cape Penck, at 87°43′E. It is located in the eastern half of Princess Elizabeth Land. It was discovered and explored in an airplane flight from the Norwegian ship "Thorshavn" on January 17, 1934, by Lieutenant Alf Gunnestad and Captain Nils Larsen. The coast was named by Lars Christensen, Norwegian whaling magnate and leader of the expedition, for King Leopold and Queen Astrid of Belgium.

paragraph_text: Archer Point () is a rocky headland on the coast marking the west side of Harald Bay, Antarctica. It was discovered in February 1911 by Lieutenant H.L.L. Pennell, Royal Navy, in the Terra Nova, expedition ship of the British Antarctic Expedition, 1910–13, under Robert Falcon Scott, and named after W.W. Archer, chief steward of the expedition.

paragraph_text: Liouville Point () is a point marking the northeast end of Petermann Island, in the Wilhelm Archipelago, Antarctica. It was discovered by the French Antarctic Expedition, 1908–10, and named by Jean-Baptiste Charcot for J. Liouville, assistant medical officer and zoologist of the expedition.

paragraph_text: Cape Lamb () is a cape which forms the southwestern tip of Vega Island in the James Ross Island group, Antarctica. It was discovered by the Swedish Antarctic Expedition, 1901–04, under Otto Nordenskjold. It was resighted in 1945 by the Falkland Islands Dependencies Survey (FIDS), and named after Ivan M. Lamb (1911–90), a botanist on the FIDS staff at Port Lockroy (1944), Hope Bay (1945), and the leader of a biological expedition to the Melchior Islands, 1964–65.

paragraph_text: Guisande e Oliveira (São Pedro) is a civil parish in the municipality of Braga, Portugal. It was formed in 2013 by the merger of the former parishes Guisande and Oliveira (São Pedro). The population in 2011 was 1,053, in an area of 4.71 km².

paragraph_text: Mauritius was later discovered and visited by the Portuguese between 1507 and 1513. Mauritius and surrounding islands were known as the Mascarene Islands Ilhas Mascarenhas after Pedro Mascarenhas.

paragraph_text: Portuguese discoveries (Portuguese: Descobrimentos portugueses) are the numerous territories and maritime routes discovered by the Portuguese as a result of their intensive maritime exploration during the 15th and 16th centuries. Portuguese sailors were at the vanguard of European overseas exploration, discovering and mapping the coasts of Africa, Canada, Asia and Brazil, in what became known as the Age of Discovery. Methodical expeditions started in 1419 along West Africa's coast under the sponsorship of prince Henry the Navigator, with Bartolomeu Dias reaching the Cape of Good Hope and entering the Indian Ocean in 1488. Ten years later, in 1498, Vasco da Gama led the first fleet around Africa to India, arriving in Calicut and starting a maritime route from Portugal to India. Portuguese explorations then proceeded to southeast Asia, where they reached Japan in 1542, forty - four years after their first arrival in India. In 1500, the Portuguese nobleman Pedro Álvares Cabral became the first European to discover Brazil.

paragraph_text: Cape Kaiser () is the north end of Lecointe Island, lying just east of Brabant Island in the Palmer Archipelago, Antarctica. It was discovered by the Belgian Antarctic Expedition, 1897–99, under Gerlache, and named by him for a supporter of the expedition.

Question: What leader sponsored the expedition that discovered the country where Sao Pedro is located?
Answer: Prince Henry the Navigator