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

full_context: Document 1: 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 2: Carriçal: Carriçal is a settlement in the eastern part of the island of São Nicolau, Cape Verde. It is situated on the south coast, 8 km southeast of Juncalinho and 24 km east of Ribeira Brava. It is the easternmost settlement on the island. Some 8 km east is the island's easternmost point, Ponta Leste. The place was mentioned as "Currissal" in the 1747 map by Jacques-Nicolas Bellin.
Document 3: 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 4: São Nicolau, Cape Verde: São Nicolau (Portuguese meaning Saint Nicholas) is one of the Barlavento (Windward) islands of Cape Verde. It is located between the islands of Santa Luzia and Sal. Its population is 12,424 (2015), with an area of 343 km². The main towns are Ribeira Brava and Tarrafal de São Nicolau.
Document 5: 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.
Document 6: Praia, Cape Verde (municipality): Praia is a "concelho" (municipality) of Cape Verde. It is situated in the southern part of the island of Santiago. Its seat is the city Praia, the capital of Cape Verde. Its area is , and its population was 131,719 at the 2010 census. The municipality consists of one "freguesia" (civil parish), Nossa Senhora da Graça. The city hall is located in the Platô part of the city.
Document 7: 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 8: 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 9: Santa Cruz, Cape Verde: Santa Cruz is a "concelho" (municipality) of Cape Verde. It is situated in the eastern part of the island of Santiago. Its seat is the city Pedra Badejo. Its population was 26,617 at the 2010 census, and its area is 112.2 km.
Document 10: 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 11: Chã das Caldeiras: Chã das Caldeiras (“Plain of the Calderas”) is a small community of approximately 700 inhabitants in the crater of the volcano Pico do Fogo on the island of Fogo, Cape Verde. The village consists of two main parts: "Portela" and "Bangaeira", founded in 1920 and 1917, respectively. At an elevation of about 1,700 meters, it is the highest village in Cape Verde. It is part of the municipality of Santa Catarina do Fogo. The main organizing body in the village is the "Associação dos Agricultores de Chã" (the agricultural cooperative), which holds considerable sway over the local economy. Chã is the only area in Cape Verde that grows significant quantities of grapes and produces export-quality wines.
Document 12: 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 13: Salamansa: Salamansa is a village in the northeastern part of the island of Sao Vicente, Cape Verde. It is situated on the north coast, approximately 5 km northeast of the city centre of Mindelo. In 2010 its population was 1,179. Salamansa is a fishing village with a long sandy beach.
Document 14: 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 15: 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.
ground_truth: Prince Henry the Navigator
sub_queries: São Pedro >> country Answer: Cape Verde
What leader sponsored the expedition that discovered Cape Verde ? Answer: Prince Henry the Navigator