Question: What leader sponsored the expedition that discovered the country where Nova Sintra is located?

full_context: Document 1: Middle Ages: 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.
Document 2: Spice trade: The first country to attempt to circumnavigate Africa was Portugal, which had, since the early 15th century, begun to explore northern Africa under Henry the Navigator. Emboldened by these early successes and eyeing a lucrative monopoly on a possible sea route to the Indies the Portuguese first crossed the Cape of Good Hope in 1488 on an expedition led by Bartolomeu Dias. Just nine years later in 1497 on the orders of Manuel I of Portugal, four vessels under the command of navigator Vasco da Gama rounded the Cape of Good Hope, continuing to the eastern coast of Africa to Malindi to sail across the Indian Ocean to Calicut, on the Malabar Coast. in south India -- the capital of the local Zamorin rulers. The wealth of the Indies was now open for the Europeans to explore; the Portuguese Empire was the earliest European seaborne empire to grow from the spice trade.
Document 3: Late Middle Ages: The 1469 marriage of Isabella I of Castile and Ferdinand II of Aragon and the 1479 death of John II of Aragon led to the creation of modern-day Spain. In 1492, Granada was captured from the Moors, thereby completing the Reconquista. Portugal had during the 15th century – particularly under Henry the Navigator – gradually explored the coast of Africa, and in 1498, Vasco da Gama found the sea route to India. The Spanish monarchs met the Portuguese challenge by financing the expedition of Christopher Columbus to find a western sea route to India, leading to the discovery of the Americas in 1492.
Document 4: Portuguese discoveries: 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.
Document 5: São Pedro, Cape Verde: 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.
Document 6: Age of Discovery: Portugal's neighbouring fellow Iberian rival, Castile, had begun to establish its rule over the Canary Islands, located off the west African coast, in 1402, but then became distracted by internal Iberian politics and the repelling of Islamic invasion attempts and raids through most of the 15th century. Only late in the century, following the unification of the crowns of Castile and Aragon and the completion of the reconquista, did an emerging modern Spain become fully committed to the search for new trade routes overseas. The Crown of Aragon had been an important maritime potentate in the Mediterranean, controlling territories in eastern Spain, southwestern France, major islands like Sicily, Malta, and the Kingdom of Naples and Sardinia, with mainland possessions as far as Greece. In 1492 the joint rulers conquered the Moorish kingdom of Granada, which had been providing Castile with African goods through tribute, and decided to fund Christopher Columbus's expedition in the hope of bypassing Portugal's monopoly on west African sea routes, to reach ``the Indies ''(east and south Asia) by travelling west. Twice before, in 1485 and 1488, Columbus had presented the project to king John II of Portugal, who rejected it.
Document 7: European exploration of Africa: European exploration of Sub-Saharan Africa begins with the Age of Discovery in the 15th century, pioneered by Portugal under Henry the Navigator. The Cape of Good Hope was first reached by Bartolomeu Dias on 12 March 1488, opening the important sea route to India and the Far East, but European exploration of Africa itself remained very limited during the 16th and 17th centuries. The European powers were content to establish trading posts along the coast while they were actively exploring and colonizing the New World. Exploration of the interior of Africa was thus mostly left to the Arab slave traders, who in tandem with the Muslim conquest of the Sudan established far - reaching networks and supported the economy of a number of Sahelian kingdoms during the 15th to 18th centuries.
Document 8: Portugal: Portugal spearheaded European exploration of the world and the Age of Discovery. Prince Henry the Navigator, son of King João I, became the main sponsor and patron of this endeavour. During this period, Portugal explored the Atlantic Ocean, discovering several Atlantic archipelagos like the Azores, Madeira, and Cape Verde, explored the African coast, colonized selected areas of Africa, discovered an eastern route to India via the Cape of Good Hope, discovered Brazil, explored the Indian Ocean, established trading routes throughout most of southern Asia, and sent the first direct European maritime trade and diplomatic missions to China and Japan.
Document 9: Viriato de Barros: Viriato de Barros (born in Vila Nova Sintra in the island of Brava in Cape Verde) is a Cape Verdean writer. He worked as a professor in Portugal, São Tomé and Príncipe, Cape Verde and in Quelimane, Mozambique, he returned during Cape Verdean independence in 1975. Between 1975 and 1985, he was director and was responsible in Cultural Associations and Co-operation of the Ministry of Education. He was later Cape Verdean ambassador to Senegal and later a place named Santa Sé between 1984 and 1985, he was later councillor to the President of the Republic. In 1985, he returned to Cape Verde and was a journalists of "America's Voice" and was a journalist of social communications in Washington, D.C. between 1986 and 1988 and then he headed to Portugal where he had reintegrated the Portuguese public funding, newly as a professor. He is now a member of the Scientific Council and reporter at the Multicultural Studies Centre, associated by the International University of Lisbon.
Document 10: São Pedro Apóstolo: 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.
Document 11: Cesário Verde: Cesário Verde (25 February 1855 – 19 July 1886) was a 19th-century Portuguese poet. His work, while mostly ignored during his lifetime and not well known outside of the country's borders even today, is generally considered to be amongst the most important in Portuguese poetry and is widely taught in schools. This is partly due to his being championed by many other authors after his death, notably Fernando Pessoa.
Document 12: .cv: .cv is the country code top-level domain (ccTLD) for Cape Verde. It is managed by the National Communications Agency (Portuguese: "Agência Nacional das Comunicações", ANAC). It was introduced on 21 October 1996 and initially it was managed by the Instituto Superior de Engenharia e Ciências do Mar (ISECMAR), later it became the School of Maritime Sciences, it became a campus of the University of Cape Verde until its redelegation in August 2009 by the current National Communications Agency.
Document 13: Francisco José Pinheiro: Francisco José Pinheiro (born September 28, 1954 in Jaguaribe, Brazil), better known as Professor Pinheiro, is a Brazilian historian, writer and politician. He was deputy governor of the state of Ceará (one of Brazil's states in the northeast region), in the first term of Governor Cid Gomes. Today was elected state representative, but took over as head of the Secretary of Culture of the state of Ceará.
Document 14: Brava, Cape Verde: Brava (Portuguese for “wild” or "brave") is an island in Cape Verde, in the Sotavento group. At , it is the smallest inhabited island of the Cape Verde archipelago, but at the same time the greenest. First settled in the early 16th century, its population grew after Mount Fogo on neighbouring Fogo erupted in 1680. For more than a century, its main industry was whaling, but the island economy is now primarily agricultural.
Document 15: Age of Discovery: Global exploration started with the Portuguese discoveries of the Atlantic archipelagos of Madeira and the Azores, the coast of Africa, and the discovery of the sea route to India in 1498; and the Crown of Castile (Spain) the trans - Atlantic Voyages of Christopher Columbus to the Americas between 1492 and 1502 and the first circumnavigation of the globe in 1519 -- 1522. These discoveries led to numerous naval expeditions across the Atlantic, Indian and Pacific oceans, and land expeditions in the Americas, Asia, Africa and Australia that continued into the late 19th century, and ended with the exploration of the polar regions in the 20th century.
ground_truth: Prince Henry the Navigator
sub_queries: Nova Sintra >> country Answer: Cape Verde
What leader sponsored the expedition that discovered Cape Verde ? Answer: Prince Henry the Navigator