Question: Pierre Victor held what rank in the french branch of the Swiss Guards?

Context paragraphs:
Pierre Victor, baron de Besenval de Brünstatt: Pierre Victor, baron de Besenval de Brünstatt (1722–1794) was the last commander of the Swiss Guards in France.

Swiss Guards: Swiss Guards (French: "Gardes Suisses" ; German: "Schweizergarde" ) are the Swiss soldiers who have served as guards at foreign European courts since the late 15th century.

Swiss literature: As there is no dominant national language, the four main languages of French, Italian, German and Romansch form the four branches which make up a literature of Switzerland.  The original Swiss Confederation, from its foundation in 1291 up to 1798, gained only a few French-speaking districts in what is now the Canton of Fribourg, and so the German language dominated.  During that period the Swiss vernacular literature was in German, although in the 18th century, French became fashionable in Bern and elsewhere.  At that time, Geneva and Lausanne were not yet Swiss: Geneva was an ally and Vaud a subject land.  The French branch does not really begin to qualify as Swiss writing until after 1815, when the French-speaking regions gained full status as Swiss cantons.  The Italian and Romansch-Ladin branches are less prominent.

Armand de Camboust, duc de Coislin: Armand de Camboust, duc de Coislin (1 September 1635, Paris – 16 September 1702) was a French lieutenant général des armées du roi, and a duke and peer of France.  The son of a colonel in the Swiss Guards, he was elected a member of the Académie française in 1652 aged 16 and a half.  He died young and his seat was then held by his two sons, Pierre and Henri-Charles.

Congregation of the Feuillants: The Feuillants were a Roman Catholic congregation, originating in the 1570s as a reform of the Cistercian life in Les Feuillants Abbey in France but soon after declared an independent order, which in 1630 separated into the French branch (the Congregation of Notre-Dame des Feuillants) and the Italian branch (the Reformed Bernardines or "Bernardoni").  The French order was suppressed in 1791 during the French Revolution.  The Italian order later rejoined the Cistercians.

Elmar Mäder: Elmar Theodor Mäder (born 28 July 1963) was the thirty-third and former Commandant of the Pontifical Swiss Guards.  He held the rank of colonel in the Guards.

Bellamya: Bellamya was a supertanker, built in 1976 by Chantiers de l'Atlantique at Saint-Nazaire for the French branch of Shell Oil.  She was the second Batillus class supertanker.  "Bellamya", together with her sister ships "Batillus, Pierre Guillaumat" and "Prairial", was one of the biggest ships in the world, surpassed in size only by "Seawise Giant" (later "Jahre Viking, Happy Giant" and "Knock Nevis") built in 1976, and extended in 1981, although the four ships of the Batillus class had a larger gross tonnage.  If size is indicated by gross tonnage--a measure of volume--"Bellamya" was the largest ship ever built.

David René de Rothschild: Baron David René James de Rothschild (] ; born December 15, 1942) is a French banker and a member of the French branch of the Rothschild family.  He is the chairman of Rothschild Continuation Holdings, a Swiss holding company (which is believed to be controlled by Concordia BV, another holding company, registered in the Netherlands).  He was formerly a chairman of De Beers.  Since May 2013, de Rothschild is also the chairman of the Governing Board of the World Jewish Congress, the international Jewish organization representing Jewish communities in 100 countries.

L'Oratoire du Louvre: The Temple Protestant de l'Oratoire du Louvre, also Eglise Réformée de l'Oratoire du Louvre, is a historic Protestant church located at 145 rue Saint-Honoré - 160 rue de Rivoli in the 1st arrondissement of Paris, across the street from the Louvre.  It was founded in 1611 by Pierre de Bérulle as the French branch of the Oratory of Saint Philip Neri.  It was made the royal chapel of the Louvre Palace by Louis XIII on December 23, 1623 and was host to the funerals of both Louis and Cardinal Richelieu.  Work on the church was suspended in 1625 and not resumed until 1740, with the church completed in 1745.

Batillus: Batillus was a supertanker, built in 1976 by Chantiers de l'Atlantique at Saint-Nazaire for the French branch of Shell Oil.  The first vessel of homonymous Batillus class supertankers.  "Batillus", together with her sister ships "Bellamya, Pierre Guillaumat" and "Prairial", was one of the biggest ships in the world, surpassed in size only by "Seawise Giant" (later "Jahre Viking, Happy Giant" and "Knock Nevis") built in 1976, and extended in 1981, although the four ships of the Batillus class had a larger gross tonnage.

Supporting paragraphs: Pierre Victor, baron de Besenval de Brünstatt Swiss Guards
Answer: the last commander