Question: Which Scottish fortress did french soldier  Corbeyran de Cardaillac de Sarlabous serve as the captain?
Context: Pierre-Charles de Liette (born PierCarlo Di Lietto) was an Italian who moved to French North America and enrolled there as French soldier.  He served as aide to Henri de Tonti, as commandant at Fort Saint-Louis and Chécagou, and as a captain in the colonial regular troops from 1687 to 1729.  He was also Commander of the Illinois County. Charles de Solier, comte de Morette (1480 – 1 February 1552), the son of Aubertin de Solier, comte de Morette (1465–1545), was a French soldier and diplomat as well as a long-serving "gentilhomme de la chambre" to Francis I.  He acted as ambassador to England on a number of occasions from October 1526 to June 1535.  Morette was in London in 1534 when Henry VIII was attempting to win French support for his repudiation of Catherine of Aragon, in an alliance against Charles V.  Around this time, his portrait was painted by Hans Holbein the Younger.  Holbein had also painted The Ambassadors, which depicted two French envoys, Jean de Dinteville, seigneur de Polisy, and Georges de Selve, Bishop of Lavaur, in 1533.  He was succeeded as ambassador by Antoine de Castelnau, Bishop of Tarbes. Marie Magdelaine Mouron, also known as "Picard" and "La Garonne", (floruit 1696), was a French soldier.  She served in the French army disguised as a male from 1690 until 1696.  She served under the Duke of Noailles in Catalonia and participated in the Siege of Rosas in 1693.  Her biological gender was exposed after she was forced to medical attention after a duel with a fellow soldier.  In March 1696, she was arrested accused of desertion, during which her story was documented.  The documentation of her case is considered to have great historic value for several reasons: it documents a case of a female early modern age soldier without the sensationalism usually surrounding narratives of such occurrences; it also documents the life of a common foot soldier of the French army regardless of gender, as narratives of French foot soldiers of this epoch was quite rare. Corbeyran de Cardaillac de Sarlabous was a 16th-century French soldier who served in Scotland as Captain of Dunbar Castle, and was Governor of Le Havre for twenty years.  He was usually called Captain Sarlabous in Scottish and English letters of his time.  A contemporary French writer calls him the "sieur de Sarlaboz."  Sarlabous is a place in the Hautes-Pyrénées where Corbeyran held lands. Préfontaine is a family surname of French-Canadian origin.  All Préfontaines in North America are descended from Antoine Fournier "dit Préfontaine" (born in 1663 in Picardie, France; died in 1702 in Montréal, Canada).  He was a French soldier and a barrel cooper by trade in the Compagnie de Troyes, Troupes de la Marine.  At the time it was common for French soldiers to adopt a nom de guerre often in reference to a trade, a place or a military rank.  Antoine's nom de guerre was "dit Préfontaine", French for "field ("pré") with a spring ("fontaine")".  He arrived in New France in August 1685 and took part in Chevalier Pierre de Troyes successful raid on several English trading posts in the Hudson Bay and James Bay regions from March to October 1686 (Hudson Bay expedition (1686)).  He married Marie Ronceray in 1688 in Longueuil, Québec.  Antoine's only son, Adrien (1693–1760), was an important businessman and a major figure in the economic development of New France.  Adrien in turn had a son by the same name, who was a slave owner and was killed at the Battle of the Plains of Abraham on September 13, 1759.  By the early-to-mid-19th century, the various families descended from Antoine dropped the Fournier part of the surname in favour of Préfontaine.  Two brothers from Longueuil, Québec, Alexis and Toussaint Fournier dit Préfontaine, participated in the initial engagement of the Lower Canada Rebellion, the Chambly Road incident of November 17, 1837.  The rebels were inspired by the ideals of the American Revolution, republicanism and the desire for responsible and representative government.  Alexis, an officer in the militia, resigned his commission the day before joining the Rebellion.  When the Rebellion collapsed in November 1838, and after proudly admitting their active participation, even under the possible penalty of death or exile, both brothers were to spend a year in jail along with 1,100 other Patriotes.  Two of Toussaint's sons, Raymond and François-Xavier, went on to have notable careers in their respective professions (see below).  During the second half of the 19th century, several Préfontaine families emigrated from Québec to New England, the Midwest and the North-West of the United States.  Others emigrated to Western Canada, notably to Manitoba and Saskatchewan. Jean-Baptiste Meynier, born 22 April 1749 – died 3 December 1813, was a French soldier who served during the American Revolutionary War, the French Revolutionary Wars, and the Napoleonic Wars.  Between 1792 and 1793, he rose from a captain to a general of division.  During the Montenotte Campaign in 1796, he commanded a division under Napoleon Bonaparte, who had a low opinion of his military talent.  In 1803 he was appointed to command the fortress of Mainz.  He died there in 1813. Dunbar Castle is the remnants of one of the strongest fortresses in Scotland, situated in a prominent position overlooking the harbour of the town of Dunbar, in East Lothian. Pierre Yrieix Daumesnil (14 July 1776 in Périgueux – 17 August 1832 in Vincennes) was a French soldier in the armies of Napoleon during the first Empire and Restoration, eventually rising to the rank of brigadier general.  He participated in the Battle of Wagram, where he lost a leg which was replaced by a wooden prosthesis; hence his nickname "jambe de bois" ("wooden leg").  He was assigned to the defense of the Château de Vincennes in 1812.  Vincennes was then an arsenal containing 52,000 new rifles, more than 100 field guns and many tons of powder, bullets and cannonballs—a tempting prize for the Sixth Coalition marching on Paris in 1814 in the aftermath of the Battle of the Nations.  However Daumesnil faced down the allies and replied with the famous words "I shall surrender Vincennes when I get my leg back" ("Je rendrai Vincennes quand on me rendra ma jambe", with a polysemic pun in French that is lost in translation).  With only 300 men under his command, he resisted the Coalition until King Louis XVIII of France ordered him to leave the fortress. Jacques Alexandre Bernard Law, marquis de Lauriston (1 February 1768 – 12 June 1828) was a French soldier and diplomat of Scottish descent, and a general officer in the French army during the Napoleonic Wars.  He was born in Pondicherry in French India, where his father, a nephew of the financier John Law, was the Governor-General.  His mother was a member of the Carvallho family of Portuguese traders.  Lauriston is one of the names inscribed under the Arc de Triomphe. Kinlochaline Castle is a 12th-century Scottish fortress on the Ardtornish estate in Morvern in the Highland council area.  It is also known as Caisteal an Ime (Scottish Gaelic for "Castle of Butter") because a Lady of Clan MacInnes, Dubh Chal (Lady of the Black Veil), is said to have paid the builder with butter equal to the volume of the castle.
Answer: Dunbar Castle