Question: Jacques Coghen is a direct ancestor to the spouse of which Belgian Queen?

Documents:
source: Philippe of Belgium
text: Philippe of Belgium Philippe (] , French: "Philippe Léopold Louis Marie" , Dutch: "Filip Leopold Lodewijk Maria" , German: "Philipp Leopold Ludwig Maria" ; born 15 April 1960) is the seventh King of the Belgians, having ascended the throne on 21 July 2013, following his father's abdication. He is the eldest child of King Albert II, whom he succeeded upon Albert's abdication for health reasons, and Queen Paola. He married Countess Mathilde d'Udekem d'Acoz (now Queen Mathilde), with whom he has four children. King Philippe's elder daughter, Princess Elisabeth, is first in the line of succession.

source: Jacques Coghen
text: Jacques Coghen Count Jacques Andres Coghen (31 October 1791 in Brussels – 15 May 1858 in Brussels) was the second Minister of Finance of the Kingdom of Belgium (1831-1832), and a direct ancestor of the current King, Philippe of Belgium.

source: Monkeypox virus
text: Monkeypox virus Monkeypox virus (MPV) is a double-stranded DNA, zoonotic virus and a species of the genus "Orthopoxvirus" in the family Poxviridae. It is one of the human orthopoxviruses that includes variola (VARV), cowpox (CPX), and vaccinia (VACV) viruses. But it is not a direct ancestor to, nor a direct descendent of, the variola virus which causes smallpox. The monkeypox virus causes a disease that is similar to smallpox, but with a milder rash and lower death rate. Variation in virulence of the virus has been observed in isolates from Central Africa where strains are more virulent than those from Western Africa.

source: Marcus Livius Drusus Claudianus
text: Marcus Livius Drusus Claudianus Marcus Livius Drusus Claudianus ("fl. " 1st century BC) was a senator of the Roman Republic. He was born with the name "Appius Claudius Pulcher", into the patrician family of the Claudii. According to Suetonius, Drusus was a direct descendant of the consul and censor Appius Claudius Caecus. He was descended from Caecus via the first Appius Claudius Pulcher, who was consul in 212 BC and Caecus's great-grandson. His daughter Livia became the wife of the first Roman Emperor Augustus, and he was thus a direct ancestor of the Julio-Claudian emperors Tiberius, Caligula, Claudius and Nero.

source: Urus Khan
text: Urus Khan Urus Khan was the eighth Khan of the White Horde and a disputed Khan of the Blue Horde; he was a direct descendant of Genghis Khan. Urus himself was the direct ancestor of the khans of the Kazakh Khanate.

source: Janet Doub Erickson
text: Janet Doub Erickson Janet Ann Doub spent her early years in Boonsboro, Maryland, on farmland her father’s ancestors had settled in the eighteenth century and subsequently farmed continuously. She moved to New England in the nineteen thirties to be closer to her mother’s family, who were descended from New England's earliest pioneers. One direct ancestor, the aristocratic Henry Sherburne of Portsmouth, New Hampshire numbered among New Hampshire's first English settlers, arriving there in 1632, a little more than a decade after the Mayflower landed on Cape Cod. Sherburne and his descendants settled New England and beyond as the frontier moved west. Another maternal ancestor was Thomas Wiggin, the first governor of the province of New Hampshire. Mid-Atlantic, her father's Maryland forebears were the pioneering German Palatine Doub (family), active in Western Maryland before and after American independence from England. These pietist Doubs were early and active members of the Church of the United Brethren in Christ. This conservative Trinitarian church claims to be the first Christian denomination founded in America and from its early days took a strong stand against slavery.

source: Australopithecus garhi
text: Australopithecus garhi Australopithecus garhi is a 2.5-million-year-old gracile australopithecine species whose fossils were discovered in 1996 by a research team led by Ethiopian paleontologist Berhane Asfaw and Tim White, an American paleontologist. The hominin remains are believed to be a human ancestor species and possibly the direct ancestor to the human genus, "Homo".

source: Mammuthus africanavus
text: Mammuthus africanavus The African mammoth, "Mammuthus africanavus" (literally, "African ancestor mammoth"), is the second oldest of mammoth species, having first appeared around 3 million years ago during the late Pliocene, with a last appearance around 1.65 million years ago in the early Pleistocene. Its fossils have been found in Chad, Libya, Morocco and Tunisia. It was relatively small and is seen as the direct ancestor of "M. meriodionalis", although its tusk diverged more widely from its skull than later species of mammoth, which might indicate that it was an evolutionary dead end.

source: Burchard I, Duke of Swabia
text: Burchard I, Duke of Swabia Burchard I (died 5 or 23 November 911) was the Duke of Alamannia from 909 to his death and margrave of Raetia Curiensis, as well as Count in the Thurgau and Baar. Born between 855 and 860, He was the son of Adalbert II, Count in the Thurgau. Burchard married Liutgard of Saxony. He is a direct ancestor of Queen Elizabeth II .

source: Australopithecus afarensis
text: Australopithecus afarensis Australopithecus afarensis (Latin: "Southern ape from Afar") is an extinct hominin that lived between 3.9 and 2.9 million years ago. "A. afarensis" was slenderly built, like the younger "Australopithecus africanus". "A. afarensis" is thought to be more closely related to the genus "Homo" (which includes the modern human species "Homo sapiens"), whether as a direct ancestor or a close relative of an unknown ancestor, than any other known primate from the same time. Some researchers include "A. afarensis" in the genus "Praeanthropus".

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Answer: Queen Mathilde