Question: Which architect was responsible for designing the building standing on the original site of a Spanish explorer, conquistador, and first Governor of Puerto Rico?

full_context: Document 1: Anson Mills Building: The Anson Mills Building is a historic building located at 303 North Oregon Street in El Paso, Texas. The Building stands on the original site of the 1832 Ponce de León ranch. Anson Mills hired Henry C. Trost of the Trost & Trost architectural firm to design and construct the building. Trost was the area's foremost pioneer in the use of reinforced concrete. Built in 1910-1911, the building was only the second concrete-frame skyscraper in the United States and one of the largest all-concrete buildings. At 145 feet (44 m), the 12-story Mills Building was the tallest building in El Paso when completed. The architectural firm of Trost and Trost moved its offices to the building upon completion, where they remained until 1920. The Mills family sold the building in 1965. The building stands on a corner site opposite San Jacinto Plaza, with a gracefully curved street facade that wraps around the south and east sides. Like many of Trost's designs, the Anson Mills Building's overall form and strong verticality, as well as details of the ornamentation and cornice, are reminiscent of the Chicago School work of Louis Sullivan.
Document 2: Juan de Sanct Martín: Juan de Sanct Martín, also known as Juan de San Martín, was a Spanish conquistador. Little is known about De Sanct Martín, apart from a passage in "El Carnero" (1638) by Juan Rodríguez Freyle and "Epítome de la conquista del Nuevo Reino de Granada", a work of uncertain authorship. He took part in the expedition from Santa Marta into the Eastern Ranges of the Colombian Andes led by Gonzalo Jiménez de Quesada and founded Cuítiva, Boyacá in 1550. Juan de Sanct Martín headed the left flank of the Spanish troops in the Battle of Tocarema against the Panche on August 20, 1538, while his fellow conquistador Juan de Céspedes commanded the right flank. In this battle, Juan de Sanct Martín killed the "cacique" of the Panche and was hurt himself. Juan de Sanct Martín had confronted the Panche the year before, when he was sent to the west while De Céspedes went south. Due to the resistance of the bellicose Panche, De Sanct Martín returned to the Spanish camp.
Document 3: Pittsburgh Plate Glass Company Building: The Pittsburgh Plate Glass Company Building, also known as the Northern Implement Company and the American Trio Building, is a warehouse building in downtown Minneapolis, Minnesota. PPG Industries of Pittsburgh constructed the structure. It was designed by locally notable firm Kees and Colburn and shows strong influences of noted architect Louis Sullivan. The arches in the top floor windows are modeled after Louis Sullivan's designs, which in turn were influenced by Henry Hobson Richardson's Richardsonian Romanesque style. The corners of the building are subtly chamfered in at the bottom and rise toward a flaring cornice at the top, echoing John Wellborn Root's design of the Monadnock Building in Chicago.
Document 4: Juan Ponce de León: Juan Ponce de León (] ; 1474 – July 1521) was a Spanish explorer and "conquistador". He became the first Governor of Puerto Rico by appointment of the Spanish crown. He led the first known European expedition to "La Florida", which he named during his first voyage to the area in 1513. Though in popular culture, he was supposedly searching for the Fountain of Youth, there is no contemporary evidence to support the story, which is likely a myth.
Document 5: Rookery Building: The Rookery Building is a historic landmark located at 209 South LaSalle Street in the Loop community area of Chicago in Cook County, Illinois, United States. Completed by John Wellborn Root and Daniel Burnham of Burnham and Root in 1888, it is considered one of their masterpiece buildings, and was once the location of their office. The building measures 181 ft , is twelve stories tall and is considered the oldest standing high-rise in Chicago. It has a unique style with exterior load-bearing walls and an interior steel frame, which provided a transition between accepted and new building techniques. The lobby was remodeled in 1905 by Frank Lloyd Wright. Beginning in 1989, the lobby was restored to the original Wright design.
Document 6: Francisco Pizarro: Francisco Pizarro González ( ; ] ; c. 1471  – 26 June 1541) was a Spanish conquistador who led an expedition that conquered the Inca Empire. He captured and killed Incan emperor Atahualpa, and claimed the lands for Spain.
Document 7: Herring Motor Car Company Building: The Herring Motor Car Company Building, also known as 10th Street Lofts, is an historic building located in downtown Des Moines, Iowa, United States. The building is a six-story brick structure that rises 90 ft above the ground. It was designed by the Des Moines architectural firm of Proudfoot, Bird & Rawson in the Classical Revival style. Clyde L. Herring had the building built in 1912 and it was completed the following year. It was originally a four-story building and two more floors were added 18 months after it was originally built. By 1915 the company was building 32 Ford automobiles a day, and had delivered “more automobiles than any other one automobile agency in the United States”. Along with the neighboring Standard Glass and Paint Company Building it is part of the same loft apartment complex. The National Biscuit Company Building on the other side of the building has also been converted into an apartment building. It was listed on the National Register of Historic Places in 2004.
Document 8: Juan Márquez Cabrera: Juan Márquez Cabrera was a Spanish soldier who served as governor of Honduras (1668 – 1672) and then of Spanish Florida (1680 – 1687), until he was dismissed for abuses in office against the native peoples and Spanish citizens of Florida. He, as did the three previous governors, spent much time supervising construction of the Castillo de San Marcos and other fortifications in the presidio of St. Augustine as well as defending Florida against incursions from the British to the north.
Document 9: Republic Building (Louisville, KY): The Republic Building began construction in 1912 by builder C. A. Koerner and Company, and was completed in 1916. The building is the work of the local architectural firm of Joseph and Joseph, founded by brothers Alfred and Oscar Joseph. Alfred began his architectural career with the office of McDonald & Dodd. The firm of Joseph & Joseph was founded in 1908 and their early works reflect the influence of both Dodd and the McDonald Brothers. The work of Joseph and Joseph in the first quarter of the twentieth century shows an emphasis towards Mediterranean influence, especially that of the Spanish and Italian Renaissance. The use of terracotta and glazed brick, a rich sense of color and textural contrast, are all features of their work. These features are all evident in the Republic Building. The structure is one of the major early works of the firm to survive. The original owner was Republic Realty in 1915. Subsequent owners include Byron & Lula Brubaker (1944), Robert A. Futterman (1955), Republic Investors (1956), BHS Co. and Republic Assocs. (1974), and Oxford Properties (1980). On August 12, 1982, the Republic Building was added to the National Register of Historic Places. The Republic Building was purchased for $3,150,000 by the National Historic Property Developer and real estate company Hudson Holdings on July 31, 2015. Hudson Holdings plans to preserve the historic building, and rehabilitate it into a boutique hotel building.
Document 10: Gonzalo Méndez de Canço: Gonzalo Méndez de Canço (or "de Cancio") y Donlebún (c. 1554 – March 31, 1622) was a Spanish admiral who served as the seventh governor of the Spanish province of La Florida (1596-1603). He fought in the Battle of San Juan (1595) against the English admiral Francis Drake. During his tenure as governor of Florida, he dealt severely with a rebellion known as Juanillo´s revolt among the Native Americans in Guale, forcing them, as well as other tribes in Florida, to submit to Spanish domination. De Canço was best known, however, for promoting the cultivation of maize in the province, and for introducing its cultivation to Asturias, Spain, where it eventually became an important crop.
Document 11: Old National Bank Building: The Old National Bank building, located in Spokane, Washington, was completed in 1911 and was the first skyscraper located in the Inland Northwest. This fifteen story tower reaches to a height of 217 feet (66 m) above the Spokane valley and remained the tallest building in the city until the Paulsen Center was completed across the street on Riverside Ave. The Old National Bank building served as a symbol of prosperity for the rising economy of the Inland Empire.
Document 12: Praetorian Building: The Praetorian Building, also known as Stone Place Tower, was a 15-story, 58 m high-rise constructed in 1909 at Main Street and Stone Street in the Main Street District of downtown Dallas, Texas. It was regarded the first skyscraper in Texas and the first skyscraper in the Southwestern United States. Some consider it the first skyscraper in the entire Western United States, depending on the definition of "the West", as this title could also go to the 1885 Lumber Exchange Building in Minneapolis, Minnesota).
Document 13: Juan Francisco Luis: Juan Francisco Luis (July 10, 1940 – June 4, 2011) was a United States Virgin Islands politician who served as the third elected Governor of the U.S. Virgin Islands and the territory's 23rd governor overall. Luis assumed the governorship on January 2, 1978, succeeding Governor Cyril King, who died in office. He held the governor's office from 1978 until 1987, becoming the longest-serving governor in the history of the U.S. Virgin Islands.
Document 14: Francisco de Chicora: Francisco de Chicora was the baptismal name given to a Native American kidnapped in 1521, along with 70 others, from near the mouth of the Pee Dee River by Spanish explorer Francisco Gordillo and slave trader Pedro de Quexos, based in Santo Domingo and the first Europeans to reach the area. From analysis of the account by Peter Martyr, court chronicler, the ethnographer John R. Swanton believed that Chicora was from a Catawban group.
Document 15: Juanillo: Juanillo was "mico", or chieftain, of the Tolomato, and heir to the chiefdom of Guale (clan organization was matrilineal). After the arrival of the Spanish colonizers in Florida, some chiefs of the Guale tribe, whose vast territory stretched from the Altamaha River (Georgia) to Port Royal, were concerned about the spread of Christianity. Their grievances under the administration of the Spanish governor, Gonzalo Méndez de Cancio, included the Franciscan missionaries forbidding the Indian practices of polygamy, divorce, dancing, games and tribal wars. These proscriptions weakened his people, according to Juanillo, making them lose their old courage and skill.
ground_truth: Henry C. Trost