The Lourdes Medical Bureau ("Bureau des Constatations Médicales") is an official medical organization based in Lourdes, France, within the Sanctuary of Our Lady of Lourdes.
 Its function is to transfer medical investigation of apparent cures associated with the shrine of Lourdes to the International Medical Committee of Lourdes ("Comité Médical International de Lourdes").
 In 2013 it is presided over by Mgr Nicolas Brouwet, bishop of Tarbes and Lourdes, and François-Bernard Michel, also president of the Académie Nationale de Médecine
Metrology, as defined by the International Bureau of Weights and Measures (BIPM), is "the science of measurement, embracing both experimental and theoretical determinations at any level of uncertainty in any field of science and technology".
 It establishes a common understanding of units, crucial in linking human activities.
 Modern metrology has its roots in the French Revolution's political motivation to standardise units in France, when a length standard taken from a natural source was proposed.
 This led to the creation of the decimal-based metric system in 1795, establishing a set of standards for other types of measurements.
 Several other countries adopted the metric system between 1795 and 1875; to ensure conformity between the countries, the Bureau International des Poids et Mesures (BIPM) was established by the Metre Convention.
 This has evolved into the International System of Units (SI) as a result of a resolution at the 11th Conference Generale des Poids et Mesures (CGPM) in 1960.
The Bureau (original title: Le Bureau des légendes ) is a French political thriller television series created by Éric Rochant and produced by Canal+, which revolves around the lives of agents of the DGSE (General Directorate of External Security), France's principal external security service.
 Originally aired in France from 27 April 2015, it was first launched in the US and Canada on iTunes on 1 June 2016 as part of a new international "Episodic Cinema" label, quickly reaching the Top Five.
 In the United Kingdom, the series was released exclusively by Amazon Prime on 17 June 2016.
Claude Point ( ) is a headland which forms the south side of the entrance to Guyou Bay on the west side of Brabant Island, in the Palmer Archipelago.
 It was discovered by the French Antarctic Expedition, 1903–05, under Jean-Baptiste Charcot, who named it for Monsieur Claude, an associate member of the Bureau des Longitudes.
The Bureau des Longitudes (] ) is a French scientific institution, founded by decree of 25 June 1795 and charged with the improvement of nautical navigation, standardisation of time-keeping, geodesy and astronomical observation.
 During the 19th century, it was responsible for synchronizing clocks across the world.
 It was headed during this time by François Arago and Henri Poincaré.
 The Bureau now functions as an academy and still meets monthly to discuss topics related to astronomy.
Éphéméride Lunaire Parisienne is a lunar theory developed by Jean Chapront, Michelle Chapront-Touzé, and others at the Bureau des Longitudes in the 1970s to 1990s.
Arago was born at Estagel, a small village of 3,000 near Perpignan, in the "département " of Pyrénées-Orientales, France, where his father held the position of Treasurer of the Mint.
The Bureau des services financiers (BSF) was a Quebec organization responsible for the distribution of financial products and services covering the various disciplines defined by the "Act on the distribution of financial products and services": Insurance of persons, group insurance of persons, damage insurance, claims adjudication, financial planning, mutual fund brokerage, brokerage in investment contracts and brokerage in stock exchange plans studies.
 The BSF was in operation from 1998 to 2004, while its mission was absorbed under the Autorité des marchés financiers (Québec).
"The Bureau" is a French drama series which first aired on Canal+ and in France was titled "Le Bureau des Légendes".
Henri Jean-Baptiste Grégoire (] ; 4 December 1750 – 28 May 1831), often referred to as Abbé Grégoire, was a French Roman Catholic priest, constitutional bishop, of Blois and a revolutionary leader.
 He was an ardent abolitionist of human slavery and supporter of universal suffrage.
 He was a founding member of the Bureau des longitudes, the Institut de France, and the Conservatoire national des arts et métiers.

Question: Where was the person who headed up the 1795 Bureau des Longitudes born?
Answer: Estagel